53121099 has 8 divisors (see below), whose sum is σ = 73907712. Its totient is φ = 33874280.

The previous prime is 53121091. The next prime is 53121109. The reversal of 53121099 is 99012135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53121099 - 2³ = 53121091 is a prime.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384867 + ... + 385004.

It is an arithmetic number, because the mean of its divisors is an integer number (9238464).

Almost surely, 2^53121099 is an apocalyptic number.

53121099 is a deficient number, since it is larger than the sum of its proper divisors (20786613).

53121099 is a wasteful number, since it uses less digits than its factorization.

53121099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769897.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 53121099 is about 7288.4222572516. The cubic root of 53121099 is about 375.9144473945.

The spelling of 53121099 in words is "fifty-three million, one hundred twenty-one thousand, ninety-nine".