54257555 has 16 divisors (see below), whose sum is σ = 72763488. Its totient is φ = 38496000.

The previous prime is 54257551. The next prime is 54257563. The reversal of 54257555 is 55575245.

It is not a de Polignac number, because 54257555 - 2² = 54257551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54257551) 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 15 ways as a sum of consecutive naturals, for example, 9776 + ... + 14285.

It is an arithmetic number, because the mean of its divisors is an integer number (4547718).

Almost surely, 2^54257555 is an apocalyptic number.

54257555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54257555 is a deficient number, since it is larger than the sum of its proper divisors (18505933).

54257555 is a wasteful number, since it uses less digits than its factorization.

54257555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24118.

The product of its digits is 175000, while the sum is 38.

The square root of 54257555 is about 7365.9727802918. The cubic root of 54257555 is about 378.5762861266.

The spelling of 54257555 in words is "fifty-four million, two hundred fifty-seven thousand, five hundred fifty-five".