625025642 has 16 divisors (see below), whose sum is σ = 956751264. Its totient is φ = 306150000.

The previous prime is 625025641. The next prime is 625025651. The reversal of 625025642 is 246520526.

It is a junction number, because it is equal to n+sod(n) for n = 625025599 and 625025608.

It is not an unprimeable number, because it can be changed into a prime (625025641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20417 + ... + 40827.

It is an arithmetic number, because the mean of its divisors is an integer number (59796954).

Almost surely, 2^625025642 is an apocalyptic number.

625025642 is a deficient number, since it is larger than the sum of its proper divisors (331725622).

625025642 is a wasteful number, since it uses less digits than its factorization.

625025642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20725.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 625025642 is about 25000.5128347400. The cubic root of 625025642 is about 854.9996657660. Note that the first 3 decimals are identical.

The spelling of 625025642 in words is "six hundred twenty-five million, twenty-five thousand, six hundred forty-two".