52697916 has 36 divisors (see below), whose sum is σ = 136812312. Its totient is φ = 17090784.

The previous prime is 52697891. The next prime is 52697917. The reversal of 52697916 is 61979625.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52697917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18450 + ... + 21113.

It is an arithmetic number, because the mean of its divisors is an integer number (3800342).

Almost surely, 2^52697916 is an apocalyptic number.

It is an amenable number.

52697916 is an abundant number, since it is smaller than the sum of its proper divisors (84114396).

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

52697916 is a wasteful number, since it uses less digits than its factorization.

52697916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39610 (or 39605 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 52697916 is about 7259.3330272140. Note that the first 3 decimals coincide. The cubic root of 52697916 is about 374.9135587426.

The spelling of 52697916 in words is "fifty-two million, six hundred ninety-seven thousand, nine hundred sixteen".