54102042555 has 32 divisors (see below), whose sum is σ = 94496336640. Its totient is φ = 26213604480.

The previous prime is 54102042391. The next prime is 54102042619. The reversal of 54102042555 is 55524020145.

It is not a de Polignac number, because 54102042555 - 2⁸ = 54102042299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136536 + ... + 356154.

It is an arithmetic number, because the mean of its divisors is an integer number (2953010520).

Almost surely, 2^54102042555 is an apocalyptic number.

54102042555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54102042555 is a deficient number, since it is larger than the sum of its proper divisors (40394294085).

54102042555 is a wasteful number, since it uses less digits than its factorization.

54102042555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221131.

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 54102042555 in words is "fifty-four billion, one hundred two million, forty-two thousand, five hundred fifty-five".