55392244881 has 4 divisors (see below), whose sum is σ = 73856326512. Its totient is φ = 36928163252.

The previous prime is 55392244877. The next prime is 55392244913. The reversal of 55392244881 is 18844229355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55392244881 - 2² = 55392244877 is a prime.

It is a super-2 number, since 2×55392244881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55392244081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9232040811 + ... + 9232040816.

It is an arithmetic number, because the mean of its divisors is an integer number (18464081628).

Almost surely, 2^55392244881 is an apocalyptic number.

It is an amenable number.

55392244881 is a deficient number, since it is larger than the sum of its proper divisors (18464081631).

55392244881 is a wasteful number, since it uses less digits than its factorization.

55392244881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18464081630.

The product of its digits is 2764800, while the sum is 51.

The spelling of 55392244881 in words is "fifty-five billion, three hundred ninety-two million, two hundred forty-four thousand, eight hundred eighty-one".