625451004 has 48 divisors (see below), whose sum is σ = 1677463200. Its totient is φ = 201293568.

The previous prime is 625450951. The next prime is 625451017. The reversal of 625451004 is 400154526.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96717 + ... + 102980.

It is an arithmetic number, because the mean of its divisors is an integer number (34947150).

Almost surely, 2^625451004 is an apocalyptic number.

It is an amenable number.

625451004 is an abundant number, since it is smaller than the sum of its proper divisors (1052012196).

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

625451004 is a wasteful number, since it uses less digits than its factorization.

625451004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199739 (or 199731 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 625451004 is about 25009.0184533500. The cubic root of 625451004 is about 855.1935788220.

The spelling of 625451004 in words is "six hundred twenty-five million, four hundred fifty-one thousand, four".