325780056 has 80 divisors (see below), whose sum is σ = 1042855440. Its totient is φ = 93078720.

The previous prime is 325780051. The next prime is 325780069. The reversal of 325780056 is 650087523.

325780056 is a `hidden beast` number, since 32 + 578 + 0 + 0 + 56 = 666.

It is a super-2 number, since 2×325780056² = 212265289774726272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 325780056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325780051) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31375 + ... + 40446.

It is an arithmetic number, because the mean of its divisors is an integer number (13035693).

Almost surely, 2^325780056 is an apocalyptic number.

325780056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

325780056 is an abundant number, since it is smaller than the sum of its proper divisors (717075384).

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

325780056 is a wasteful number, since it uses less digits than its factorization.

325780056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71846 (or 71833 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 325780056 is about 18049.3782718408. The cubic root of 325780056 is about 688.0840610737.

The spelling of 325780056 in words is "three hundred twenty-five million, seven hundred eighty thousand, fifty-six".