54090557 has 4 divisors (see below), whose sum is σ = 54107040. Its totient is φ = 54074076.

The previous prime is 54090541. The next prime is 54090577. The reversal of 54090557 is 75509045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54090557 - 2⁴ = 54090541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54090527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1457 + ... + 10502.

It is an arithmetic number, because the mean of its divisors is an integer number (13526760).

Almost surely, 2^54090557 is an apocalyptic number.

It is an amenable number.

54090557 is a deficient number, since it is larger than the sum of its proper divisors (16483).

54090557 is a wasteful number, since it uses less digits than its factorization.

54090557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16482.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 54090557 is about 7354.6282706878. The cubic root of 54090557 is about 378.1874833974.

The spelling of 54090557 in words is "fifty-four million, ninety thousand, five hundred fifty-seven".