55574847555 has 64 divisors (see below), whose sum is σ = 91637637120. Its totient is φ = 28746596736.

The previous prime is 55574847511. The next prime is 55574847569.

55574847555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55574847555 - 2¹⁶ = 55574782019 is a prime.

It is a super-2 number, since 2×55574847555² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64696716 + ... + 64697574.

It is an arithmetic number, because the mean of its divisors is an integer number (1431838080).

Almost surely, 2^55574847555 is an apocalyptic number.

55574847555 is a deficient number, since it is larger than the sum of its proper divisors (36062789565).

55574847555 is a wasteful number, since it uses less digits than its factorization.

55574847555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640.

The product of its digits is 98000000, while the sum is 60.

The spelling of 55574847555 in words is "fifty-five billion, five hundred seventy-four million, eight hundred forty-seven thousand, five hundred fifty-five".