52781715 has 48 divisors (see below), whose sum is σ = 110073600. Its totient is φ = 22856256.

The previous prime is 52781681. The next prime is 52781737. The reversal of 52781715 is 51718725.

It is not a de Polignac number, because 52781715 - 2¹⁶ = 52716179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52781715.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1576 + ... + 10394.

It is an arithmetic number, because the mean of its divisors is an integer number (2293200).

Almost surely, 2^52781715 is an apocalyptic number.

52781715 is an abundant number, since it is smaller than the sum of its proper divisors (57291885).

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

52781715 is a wasteful number, since it uses less digits than its factorization.

52781715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8856 (or 8853 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 52781715 is about 7265.1025457319. The cubic root of 52781715 is about 375.1121797719.

The spelling of 52781715 in words is "fifty-two million, seven hundred eighty-one thousand, seven hundred fifteen".