53369691 has 16 divisors (see below), whose sum is σ = 72286368. Its totient is φ = 35020800.

The previous prime is 53369671. The next prime is 53369731. The reversal of 53369691 is 19696335.

It is not a de Polignac number, because 53369691 - 2⁶ = 53369627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53369671) 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, 69751 + ... + 70511.

It is an arithmetic number, because the mean of its divisors is an integer number (4517898).

Almost surely, 2^53369691 is an apocalyptic number.

53369691 is a deficient number, since it is larger than the sum of its proper divisors (18916677).

53369691 is a wasteful number, since it uses less digits than its factorization.

53369691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102.

The product of its digits is 131220, while the sum is 42.

The square root of 53369691 is about 7305.4562485857. The cubic root of 53369691 is about 376.4999268089.

The spelling of 53369691 in words is "fifty-three million, three hundred sixty-nine thousand, six hundred ninety-one".