625231329 has 16 divisors (see below), whose sum is σ = 863913600. Its totient is φ = 401735936.

The previous prime is 625231283. The next prime is 625231339. The reversal of 625231329 is 923132526.

It is a cyclic number.

It is not a de Polignac number, because 625231329 - 2¹² = 625227233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 625231329.

It is not an unprimeable number, because it can be changed into a prime (625231339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45532 + ... + 57650.

It is an arithmetic number, because the mean of its divisors is an integer number (53994600).

Almost surely, 2^625231329 is an apocalyptic number.

It is an amenable number.

625231329 is a deficient number, since it is larger than the sum of its proper divisors (238682271).

625231329 is a wasteful number, since it uses less digits than its factorization.

625231329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12744.

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

The square root of 625231329 is about 25004.6261519744. The cubic root of 625231329 is about 855.0934448670.

The spelling of 625231329 in words is "six hundred twenty-five million, two hundred thirty-one thousand, three hundred twenty-nine".