53736121 has 4 divisors (see below), whose sum is σ = 53973072. Its totient is φ = 53499172.

The previous prime is 53736107. The next prime is 53736127. The reversal of 53736121 is 12163735.

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.

It is a cyclic number.

It is not a de Polignac number, because 53736121 - 2⁹ = 53735609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53736121.

It is not an unprimeable number, because it can be changed into a prime (53736127) 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, 118135 + ... + 118588.

It is an arithmetic number, because the mean of its divisors is an integer number (13493268).

Almost surely, 2^53736121 is an apocalyptic number.

It is an amenable number.

53736121 is a deficient number, since it is larger than the sum of its proper divisors (236951).

53736121 is a wasteful number, since it uses less digits than its factorization.

53736121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236950.

The product of its digits is 3780, while the sum is 28.

The square root of 53736121 is about 7330.4925482535. The cubic root of 53736121 is about 377.3596302814.

Adding to 53736121 its reverse (12163735), we get a palindrome (65899856).

It can be divided in two parts, 53736 and 121, that multiplied together give a palindrome (6502056).

The spelling of 53736121 in words is "fifty-three million, seven hundred thirty-six thousand, one hundred twenty-one".