625887042 has 32 divisors (see below), whose sum is σ = 1402484544. Its totient is φ = 184536000.

The previous prime is 625887013. The next prime is 625887049. The reversal of 625887042 is 240788526.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 625886985 and 625887003.

It is not an unprimeable number, because it can be changed into a prime (625887049) 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 15 ways as a sum of consecutive naturals, for example, 125709 + ... + 130592.

It is an arithmetic number, because the mean of its divisors is an integer number (43827642).

Almost surely, 2^625887042 is an apocalyptic number.

625887042 is an abundant number, since it is smaller than the sum of its proper divisors (776597502).

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

625887042 is a wasteful number, since it uses less digits than its factorization.

625887042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256354.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 625887042 is about 25017.7345497149. The cubic root of 625887042 is about 855.3922675938.

The spelling of 625887042 in words is "six hundred twenty-five million, eight hundred eighty-seven thousand, forty-two".