55177238190 has 16 divisors (see below), whose sum is σ = 132425371728. Its totient is φ = 14713930176.

The previous prime is 55177238183. The next prime is 55177238191. The reversal of 55177238190 is 9183277155.

It is a super-2 number, since 2×55177238190² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55177238191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919620607 + ... + 919620666.

It is an arithmetic number, because the mean of its divisors is an integer number (8276585733).

Almost surely, 2^55177238190 is an apocalyptic number.

55177238190 is an abundant number, since it is smaller than the sum of its proper divisors (77248133538).

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

55177238190 is a wasteful number, since it uses less digits than its factorization.

55177238190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839241283.

The product of its (nonzero) digits is 529200, while the sum is 48.

The spelling of 55177238190 in words is "fifty-five billion, one hundred seventy-seven million, two hundred thirty-eight thousand, one hundred ninety".