55717228562 has 6 divisors (see below), whose sum is σ = 83576343573. Its totient is φ = 27858447372.

The previous prime is 55717228549. The next prime is 55717228571. The reversal of 55717228562 is 26582271755.

It can be written as a sum of positive squares in 2 ways, for example, as 55714409521 + 2819041 = 236039^2 + 1679^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166909.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55717228562.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 250364 + ... + 417272.

Almost surely, 2^55717228562 is an apocalyptic number.

55717228562 is a deficient number, since it is larger than the sum of its proper divisors (27859115011).

55717228562 is an frugal number, since it uses more digits than its factorization.

55717228562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333820 (or 166911 counting only the distinct ones).

The product of its digits is 2352000, while the sum is 50.

Multiplying 55717228562 by its sum of digits (50), we get a square (2785861428100 = 1669090²).

The spelling of 55717228562 in words is "fifty-five billion, seven hundred seventeen million, two hundred twenty-eight thousand, five hundred sixty-two".