53977231 has 16 divisors (see below), whose sum is σ = 69470208. Its totient is φ = 40701600.

The previous prime is 53977229. The next prime is 53977237. The reversal of 53977231 is 13277935.

It is a cyclic number.

It is not a de Polignac number, because 53977231 - 2¹ = 53977229 is a prime.

It is a super-2 number, since 2×53977231² = 5827082932854722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53977237) 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, 8920 + ... + 13693.

It is an arithmetic number, because the mean of its divisors is an integer number (4341888).

Almost surely, 2^53977231 is an apocalyptic number.

53977231 is a deficient number, since it is larger than the sum of its proper divisors (15492977).

53977231 is a wasteful number, since it uses less digits than its factorization.

53977231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22662.

The product of its digits is 39690, while the sum is 37.

The square root of 53977231 is about 7346.9198307862. The cubic root of 53977231 is about 377.9231831624.

The spelling of 53977231 in words is "fifty-three million, nine hundred seventy-seven thousand, two hundred thirty-one".