625431039 has 8 divisors (see below), whose sum is σ = 834122160. Its totient is φ = 416846976.

The previous prime is 625431013. The next prime is 625431041. The reversal of 625431039 is 930134526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-625431039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625432039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11962 + ... + 37335.

It is an arithmetic number, because the mean of its divisors is an integer number (104265270).

Almost surely, 2^625431039 is an apocalyptic number.

625431039 is a deficient number, since it is larger than the sum of its proper divisors (208691121).

625431039 is a wasteful number, since it uses less digits than its factorization.

625431039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53529.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 625431039 is about 25008.6192941554. The cubic root of 625431039 is about 855.1844791903.

The spelling of 625431039 in words is "six hundred twenty-five million, four hundred thirty-one thousand, thirty-nine".