52001656 has 32 divisors (see below), whose sum is σ = 113328000. Its totient is φ = 21907296.

The previous prime is 52001647. The next prime is 52001659. The reversal of 52001656 is 65610025.

It is a self number, because there is not a number n which added to its sum of digits gives 52001656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52001659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4566 + ... + 11173.

It is an arithmetic number, because the mean of its divisors is an integer number (3541500).

Almost surely, 2^52001656 is an apocalyptic number.

52001656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

52001656 is an abundant number, since it is smaller than the sum of its proper divisors (61326344).

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

52001656 is a wasteful number, since it uses less digits than its factorization.

52001656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15811 (or 15807 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 52001656 is about 7211.2173729544. The cubic root of 52001656 is about 373.2550778438.

The spelling of 52001656 in words is "fifty-two million, one thousand, six hundred fifty-six".