320359500725 has 12 divisors (see below), whose sum is σ = 433359034080. Its totient is φ = 232988727600.

The previous prime is 320359500701. The next prime is 320359500731. The reversal of 320359500725 is 527005953023.

It is not a de Polignac number, because 320359500725 - 2¹² = 320359496629 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582471545 + ... + 582472094.

It is an arithmetic number, because the mean of its divisors is an integer number (36113252840).

Almost surely, 2^320359500725 is an apocalyptic number.

It is an amenable number.

320359500725 is a deficient number, since it is larger than the sum of its proper divisors (112999533355).

320359500725 is a wasteful number, since it uses less digits than its factorization.

320359500725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164943660 (or 1164943655 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 41.

The spelling of 320359500725 in words is "three hundred twenty billion, three hundred fifty-nine million, five hundred thousand, seven hundred twenty-five".