625558752 has 144 divisors (see below), whose sum is σ = 2189547360. Its totient is φ = 164975616.

The previous prime is 625558733. The next prime is 625558789. The reversal of 625558752 is 257855526.

625558752 is a `hidden beast` number, since 6 + 25 + 558 + 75 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 625558698 and 625558707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14274 + ... + 38142.

It is an arithmetic number, because the mean of its divisors is an integer number (15205190).

Almost surely, 2^625558752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625558752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094773680).

625558752 is an abundant number, since it is smaller than the sum of its proper divisors (1563988608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625558752 is a wasteful number, since it uses less digits than its factorization.

625558752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23905 (or 23894 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The square root of 625558752 is about 25011.1725434854. The cubic root of 625558752 is about 855.2426847772.

The spelling of 625558752 in words is "six hundred twenty-five million, five hundred fifty-eight thousand, seven hundred fifty-two".