55388492930 has 16 divisors (see below), whose sum is σ = 100215867384. Its totient is φ = 22040601600.

The previous prime is 55388492911. The next prime is 55388492933. The reversal of 55388492930 is 3929488355.

It can be written as a sum of positive squares in 4 ways, for example, as 38820426841 + 16568066089 = 197029^2 + 128717^2 .

It is not an unprimeable number, because it can be changed into a prime (55388492933) 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, 14347421 + ... + 14351280.

Almost surely, 2^55388492930 is an apocalyptic number.

55388492930 is a deficient number, since it is larger than the sum of its proper divisors (44827374454).

55388492930 is a wasteful number, since it uses less digits than its factorization.

55388492930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28698901.

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 55388492930 in words is "fifty-five billion, three hundred eighty-eight million, four hundred ninety-two thousand, nine hundred thirty".