55227819192 has 64 divisors (see below), whose sum is σ = 169931758080. Its totient is φ = 14565578112.

The previous prime is 55227819187. The next prime is 55227819223. The reversal of 55227819192 is 29191872255.

It is a super-2 number, since 2×55227819192² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12641548 + ... + 12645915.

It is an arithmetic number, because the mean of its divisors is an integer number (2655183720).

Almost surely, 2^55227819192 is an apocalyptic number.

55227819192 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55227819192 is an abundant number, since it is smaller than the sum of its proper divisors (114703938888).

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

55227819192 is a wasteful number, since it uses less digits than its factorization.

55227819192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25287492 (or 25287488 counting only the distinct ones).

The product of its digits is 907200, while the sum is 51.

The spelling of 55227819192 in words is "fifty-five billion, two hundred twenty-seven million, eight hundred nineteen thousand, one hundred ninety-two".