55022713220 has 12 divisors (see below), whose sum is σ = 115547697804. Its totient is φ = 22009085280.

The previous prime is 55022713211. The next prime is 55022713241. The reversal of 55022713220 is 2231722055.

It can be written as a sum of positive squares in 2 ways, for example, as 33467775364 + 21554937856 = 182942^2 + 146816^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375567811 + ... + 1375567850.

It is an arithmetic number, because the mean of its divisors is an integer number (9628974817).

Almost surely, 2^55022713220 is an apocalyptic number.

It is an amenable number.

55022713220 is an abundant number, since it is smaller than the sum of its proper divisors (60524984584).

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

55022713220 is a wasteful number, since it uses less digits than its factorization.

55022713220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751135670 (or 2751135668 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The spelling of 55022713220 in words is "fifty-five billion, twenty-two million, seven hundred thirteen thousand, two hundred twenty".