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626425253 = 18115712203
BaseRepresentation
bin100101010101100…
…111110110100101
31121122201200220022
4211111213312211
52240331102003
6142054244525
721344345456
oct4525476645
91548650808
10626425253
112a1667623
12155956745
139ca1b73c
145d2a512d
1539edc738
hex25567da5

626425253 has 8 divisors (see below), whose sum is σ = 630573216. Its totient is φ = 622285200.

The previous prime is 626425249. The next prime is 626425291. The reversal of 626425253 is 352524626.

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 626425253 - 22 = 626425249 is a prime.

It is a super-2 number, since 2×6264252532 = 784817195192228018, 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 (626425753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283250 + ... + 285452.

It is an arithmetic number, because the mean of its divisors is an integer number (78821652).

Almost surely, 2626425253 is an apocalyptic number.

It is an amenable number.

626425253 is a deficient number, since it is larger than the sum of its proper divisors (4147963).

626425253 is a wasteful number, since it uses less digits than its factorization.

626425253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955.

The product of its digits is 86400, while the sum is 35.

The square root of 626425253 is about 25028.4888277339. The cubic root of 626425253 is about 855.6373861730.

Adding to 626425253 its reverse (352524626), we get a palindrome (978949879).

The spelling of 626425253 in words is "six hundred twenty-six million, four hundred twenty-five thousand, two hundred fifty-three".

Divisors: 1 181 1571 2203 284351 398743 3460913 626425253