54372591 has 48 divisors (see below), whose sum is σ = 97441344. Its totient is φ = 28449792.

The previous prime is 54372589. The next prime is 54372599. The reversal of 54372591 is 19527345.

54372591 is a `hidden beast` number, since 543 + 7 + 25 + 91 = 666.

It is not a de Polignac number, because 54372591 - 2¹ = 54372589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54372599) 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 47 ways as a sum of consecutive naturals, for example, 161175 + ... + 161511.

It is an arithmetic number, because the mean of its divisors is an integer number (2030028).

Almost surely, 2^54372591 is an apocalyptic number.

54372591 is a deficient number, since it is larger than the sum of its proper divisors (43068753).

54372591 is a wasteful number, since it uses less digits than its factorization.

54372591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 557 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 54372591 is about 7373.7772545691. Note that the first 3 decimals coincide. The cubic root of 54372591 is about 378.8436477252.

The spelling of 54372591 in words is "fifty-four million, three hundred seventy-two thousand, five hundred ninety-one".