53121277 has 16 divisors (see below), whose sum is σ = 62239104. Its totient is φ = 44800000.

The previous prime is 53121251. The next prime is 53121319. The reversal of 53121277 is 77212135.

It is a cyclic number.

It is not a de Polignac number, because 53121277 - 2¹¹ = 53119229 is a prime.

It is a super-2 number, since 2×53121277² = 5643740140221458, 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 (53121217) 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, 11277 + ... + 15277.

It is an arithmetic number, because the mean of its divisors is an integer number (3889944).

Almost surely, 2^53121277 is an apocalyptic number.

It is an amenable number.

53121277 is a deficient number, since it is larger than the sum of its proper divisors (9117827).

53121277 is a wasteful number, since it uses less digits than its factorization.

53121277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100.

The product of its digits is 2940, while the sum is 28.

The square root of 53121277 is about 7288.4344683889. The cubic root of 53121277 is about 375.9148672697.

The spelling of 53121277 in words is "fifty-three million, one hundred twenty-one thousand, two hundred seventy-seven".