55431122830 has 24 divisors (see below), whose sum is σ = 100667040552. Its totient is φ = 21976182144.

The previous prime is 55431122821. The next prime is 55431122867. The reversal of 55431122830 is 3822113455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89364 + ... + 344743.

It is an arithmetic number, because the mean of its divisors is an integer number (4194460023).

Almost surely, 2^55431122830 is an apocalyptic number.

55431122830 is a deficient number, since it is larger than the sum of its proper divisors (45235917722).

55431122830 is a wasteful number, since it uses less digits than its factorization.

55431122830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434340 (or 434227 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 55431122830 in words is "fifty-five billion, four hundred thirty-one million, one hundred twenty-two thousand, eight hundred thirty".