53579691 has 32 divisors (see below), whose sum is σ = 87609600. Its totient is φ = 32091840.

The previous prime is 53579683. The next prime is 53579707. The reversal of 53579691 is 19697535.

It is not a de Polignac number, because 53579691 - 2³ = 53579683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53579641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25420 + ... + 27446.

It is an arithmetic number, because the mean of its divisors is an integer number (2737800).

Almost surely, 2^53579691 is an apocalyptic number.

53579691 is a deficient number, since it is larger than the sum of its proper divisors (34029909).

53579691 is a wasteful number, since it uses less digits than its factorization.

53579691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136 (or 2130 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 53579691 is about 7319.8149566775. The cubic root of 53579691 is about 376.9931000386.

The spelling of 53579691 in words is "fifty-three million, five hundred seventy-nine thousand, six hundred ninety-one".