259808972 has 6 divisors (see below), whose sum is σ = 454665708. Its totient is φ = 129904484.

The previous prime is 259808929. The next prime is 259808981. The reversal of 259808972 is 279808952.

It is a self number, because there is not a number n which added to its sum of digits gives 259808972.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32476118 + ... + 32476125.

It is an arithmetic number, because the mean of its divisors is an integer number (75777618).

Almost surely, 2^259808972 is an apocalyptic number.

It is an amenable number.

259808972 is a deficient number, since it is larger than the sum of its proper divisors (194856736).

259808972 is a wasteful number, since it uses less digits than its factorization.

259808972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64952247 (or 64952245 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 259808972 is about 16118.5908813395. The cubic root of 259808972 is about 638.0940791483.

The spelling of 259808972 in words is "two hundred fifty-nine million, eight hundred eight thousand, nine hundred seventy-two".