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625313213 = 7233883933
BaseRepresentation
bin100101010001011…
…000010110111101
31121120122012110122
4211101120112331
52240040010323
6142014344325
721332034410
oct4521302675
91546565418
10625313213
112a0a78088
121554bb0a5
139c71c525
145d095b77
1539d6cec8
hex254585bd

625313213 has 8 divisors (see below), whose sum is σ = 745715328. Its totient is φ = 512679024.

The previous prime is 625313179. The next prime is 625313231. The reversal of 625313213 is 312313526.

625313213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 625313213 - 26 = 625313149 is a prime.

It is a super-2 number, since 2×6253132132 = 782033228704766738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625313233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1941806 + ... + 1942127.

It is an arithmetic number, because the mean of its divisors is an integer number (93214416).

Almost surely, 2625313213 is an apocalyptic number.

It is an amenable number.

625313213 is a deficient number, since it is larger than the sum of its proper divisors (120402115).

625313213 is a wasteful number, since it uses less digits than its factorization.

625313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883963.

The product of its digits is 3240, while the sum is 26.

The square root of 625313213 is about 25006.2634753775. The cubic root of 625313213 is about 855.1307726058.

Adding to 625313213 its reverse (312313526), we get a palindrome (937626739).

It can be divided in two parts, 625313 and 213, that added together give a palindrome (625526).

The spelling of 625313213 in words is "six hundred twenty-five million, three hundred thirteen thousand, two hundred thirteen".

Divisors: 1 7 23 161 3883933 27187531 89330459 625313213