54665121 has 32 divisors (see below), whose sum is σ = 86777856. Its totient is φ = 29952000.

The previous prime is 54665113. The next prime is 54665131. The reversal of 54665121 is 12156645.

It is not a de Polignac number, because 54665121 - 2³ = 54665113 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (54665111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84961 + ... + 85601.

It is an arithmetic number, because the mean of its divisors is an integer number (2711808).

Almost surely, 2^54665121 is an apocalyptic number.

It is an amenable number.

54665121 is a deficient number, since it is larger than the sum of its proper divisors (32112735).

54665121 is a wasteful number, since it uses less digits than its factorization.

54665121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its digits is 7200, while the sum is 30.

The square root of 54665121 is about 7393.5864774817. The cubic root of 54665121 is about 379.5218385540.

The spelling of 54665121 in words is "fifty-four million, six hundred sixty-five thousand, one hundred twenty-one".