54311555 has 16 divisors (see below), whose sum is σ = 66908160. Its totient is φ = 42303072.

The previous prime is 54311513. The next prime is 54311563. The reversal of 54311555 is 55511345.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54311555 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55682 + ... + 56648.

It is an arithmetic number, because the mean of its divisors is an integer number (4181760).

Almost surely, 2^54311555 is an apocalyptic number.

54311555 is a deficient number, since it is larger than the sum of its proper divisors (12596605).

54311555 is a wasteful number, since it uses less digits than its factorization.

54311555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258.

The product of its digits is 7500, while the sum is 29.

The square root of 54311555 is about 7369.6373723542. The cubic root of 54311555 is about 378.7018375586.

The spelling of 54311555 in words is "fifty-four million, three hundred eleven thousand, five hundred fifty-five".