52689961 has 16 divisors (see below), whose sum is σ = 56689920. Its totient is φ = 48885120.

The previous prime is 52689947. The next prime is 52689971. The reversal of 52689961 is 16998625.

It is not a de Polignac number, because 52689961 - 2¹⁵ = 52657193 is a prime.

Its product of digits (233280) is a multiple of the sum of its prime divisors (864).

It is not an unprimeable number, because it can be changed into a prime (52689971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70930 + ... + 71668.

It is an arithmetic number, because the mean of its divisors is an integer number (3543120).

Almost surely, 2^52689961 is an apocalyptic number.

It is an amenable number.

52689961 is a deficient number, since it is larger than the sum of its proper divisors (3999959).

52689961 is a wasteful number, since it uses less digits than its factorization.

52689961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864.

The product of its digits is 233280, while the sum is 46.

The square root of 52689961 is about 7258.7850911843. The cubic root of 52689961 is about 374.8946928009.

The spelling of 52689961 in words is "fifty-two million, six hundred eighty-nine thousand, nine hundred sixty-one".