55155551562 has 16 divisors (see below), whose sum is σ = 122567892480. Its totient is φ = 18385183836.

The previous prime is 55155551551. The next prime is 55155551593. The reversal of 55155551562 is 26515555155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510699498 + ... + 510699605.

It is an arithmetic number, because the mean of its divisors is an integer number (7660493280).

Almost surely, 2^55155551562 is an apocalyptic number.

55155551562 is an abundant number, since it is smaller than the sum of its proper divisors (67412340918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55155551562 is a wasteful number, since it uses less digits than its factorization.

55155551562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021399114 (or 1021399108 counting only the distinct ones).

The product of its digits is 937500, while the sum is 45.

The spelling of 55155551562 in words is "fifty-five billion, one hundred fifty-five million, five hundred fifty-one thousand, five hundred sixty-two".