625225045 has 8 divisors (see below), whose sum is σ = 756910296. Its totient is φ = 495753216.

The previous prime is 625225033. The next prime is 625225049. The reversal of 625225045 is 540522526.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 34880836 + 590344209 = 5906^2 + 24297^2 .

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 625225045 - 2⁷ = 625224917 is a prime.

It is a super-4 number, since 4×625225045⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 625224998 and 625225016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625225049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552732 + ... + 553861.

It is an arithmetic number, because the mean of its divisors is an integer number (94613787).

Almost surely, 2^625225045 is an apocalyptic number.

It is an amenable number.

625225045 is a deficient number, since it is larger than the sum of its proper divisors (131685251).

625225045 is a wasteful number, since it uses less digits than its factorization.

625225045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106711.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 625225045 is about 25004.5004949109. The cubic root of 625225045 is about 855.0905801006.

The spelling of 625225045 in words is "six hundred twenty-five million, two hundred twenty-five thousand, forty-five".