55205261764 has 27 divisors (see below), whose sum is σ = 100080139341. Its totient is φ = 26644237200.

The previous prime is 55205261753. The next prime is 55205261773. The reversal of 55205261764 is 46716250255.

The square root of 55205261764 is 234958.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 28948300164 + 26256961600 = 170142^2 + 162040^2 .

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 55205261764.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13625539 + ... + 13629589.

Almost surely, 2^55205261764 is an apocalyptic number.

55205261764 is the 234958-th square number.

It is an amenable number.

55205261764 is a deficient number, since it is larger than the sum of its proper divisors (44874877577).

55205261764 is an frugal number, since it uses more digits than its factorization.

55205261764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164 (or 4082 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

It can be divided in two parts, 55205 and 261764, that added together give a square (316969 = 563²).

The spelling of 55205261764 in words is "fifty-five billion, two hundred five million, two hundred sixty-one thousand, seven hundred sixty-four".