54162561 has 16 divisors (see below), whose sum is σ = 78534144. Its totient is φ = 33064704.

The previous prime is 54162557. The next prime is 54162587. The reversal of 54162561 is 16526145.

It is not a de Polignac number, because 54162561 - 2² = 54162557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54162461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12465 + ... + 16238.

It is an arithmetic number, because the mean of its divisors is an integer number (4908384).

Almost surely, 2^54162561 is an apocalyptic number.

54162561 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

54162561 is a deficient number, since it is larger than the sum of its proper divisors (24371583).

54162561 is a wasteful number, since it uses less digits than its factorization.

54162561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28760.

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

The square root of 54162561 is about 7359.5217915297. The cubic root of 54162561 is about 378.3552202380.

The spelling of 54162561 in words is "fifty-four million, one hundred sixty-two thousand, five hundred sixty-one".