55056429990 has 48 divisors (see below), whose sum is σ = 143323414416. Its totient is φ = 14663592000.

The previous prime is 55056429919. The next prime is 55056429991. The reversal of 55056429990 is 9992465055.

55056429990 is a `hidden beast` number, since 5 + 50 + 564 + 29 + 9 + 9 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55056429991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304161 + ... + 450140.

It is an arithmetic number, because the mean of its divisors is an integer number (2985904467).

Almost surely, 2^55056429990 is an apocalyptic number.

55056429990 is an abundant number, since it is smaller than the sum of its proper divisors (88266984426).

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

55056429990 is a wasteful number, since it uses less digits than its factorization.

55056429990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755125 (or 755122 counting only the distinct ones).

The product of its (nonzero) digits is 4374000, while the sum is 54.

The spelling of 55056429990 in words is "fifty-five billion, fifty-six million, four hundred twenty-nine thousand, nine hundred ninety".