53121097 has 4 divisors (see below), whose sum is σ = 53136000. Its totient is φ = 53106196.

The previous prime is 53121091. The next prime is 53121109. The reversal of 53121097 is 79012135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53121097 - 2²³ = 44732489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53121091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404 + ... + 10402.

It is an arithmetic number, because the mean of its divisors is an integer number (13284000).

Almost surely, 2^53121097 is an apocalyptic number.

It is an amenable number.

53121097 is a deficient number, since it is larger than the sum of its proper divisors (14903).

53121097 is an equidigital number, since it uses as much as digits as its factorization.

53121097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14902.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 53121097 is about 7288.4221200477. The cubic root of 53121097 is about 375.9144426767.

The spelling of 53121097 in words is "fifty-three million, one hundred twenty-one thousand, ninety-seven".