53979121 has 16 divisors (see below), whose sum is σ = 64310400. Its totient is φ = 44327808.

The previous prime is 53979119. The next prime is 53979151. The reversal of 53979121 is 12197935.

It is not a de Polignac number, because 53979121 - 2¹ = 53979119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53979151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27261 + ... + 29173.

It is an arithmetic number, because the mean of its divisors is an integer number (4019400).

Almost surely, 2^53979121 is an apocalyptic number.

It is an amenable number.

53979121 is a deficient number, since it is larger than the sum of its proper divisors (10331279).

53979121 is a wasteful number, since it uses less digits than its factorization.

53979121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088.

The product of its digits is 17010, while the sum is 37.

The square root of 53979121 is about 7347.0484549920. The cubic root of 53979121 is about 377.9275940746.

The spelling of 53979121 in words is "fifty-three million, nine hundred seventy-nine thousand, one hundred twenty-one".