52981836 has 12 divisors (see below), whose sum is σ = 123624312. Its totient is φ = 17660608.

The previous prime is 52981829. The next prime is 52981847. The reversal of 52981836 is 63818925.

It is a tau number, because it is divible by the number of its divisors (12).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2207565 + ... + 2207588.

It is an arithmetic number, because the mean of its divisors is an integer number (10302026).

Almost surely, 2^52981836 is an apocalyptic number.

It is an amenable number.

52981836 is an abundant number, since it is smaller than the sum of its proper divisors (70642476).

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

52981836 is a wasteful number, since it uses less digits than its factorization.

52981836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415160 (or 4415158 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 52981836 is about 7278.8622737348. The cubic root of 52981836 is about 375.5856590885.

The spelling of 52981836 in words is "fifty-two million, nine hundred eighty-one thousand, eight hundred thirty-six".