54121599 has 48 divisors (see below), whose sum is σ = 95606784. Its totient is φ = 28828800.

The previous prime is 54121589. The next prime is 54121601. The reversal of 54121599 is 99512145.

54121599 is a `hidden beast` number, since 5 + 41 + 21 + 599 = 666.

It is not a de Polignac number, because 54121599 - 2⁴ = 54121583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54121549) 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, 58954 + ... + 59864.

It is an arithmetic number, because the mean of its divisors is an integer number (1991808).

Almost surely, 2^54121599 is an apocalyptic number.

54121599 is a deficient number, since it is larger than the sum of its proper divisors (41485185).

54121599 is a wasteful number, since it uses less digits than its factorization.

54121599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 985 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 54121599 is about 7356.7383397807. The cubic root of 54121599 is about 378.2598154979.

The spelling of 54121599 in words is "fifty-four million, one hundred twenty-one thousand, five hundred ninety-nine".