54401599 has 16 divisors (see below), whose sum is σ = 63705600. Its totient is φ = 45493344.

The previous prime is 54401587. The next prime is 54401639. The reversal of 54401599 is 99510445.

It is a cyclic number.

It is not a de Polignac number, because 54401599 - 2⁷ = 54401471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54401099) 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, 64422 + ... + 65260.

It is an arithmetic number, because the mean of its divisors is an integer number (3981600).

Almost surely, 2^54401599 is an apocalyptic number.

54401599 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

54401599 is a deficient number, since it is larger than the sum of its proper divisors (9304001).

54401599 is a wasteful number, since it uses less digits than its factorization.

54401599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 54401599 is about 7375.7439624759. The cubic root of 54401599 is about 378.9110072937.

It can be divided in two parts, 5 and 4401599, that added together give a square (4401604 = 2098²).

The spelling of 54401599 in words is "fifty-four million, four hundred one thousand, five hundred ninety-nine".