55906115590 has 32 divisors (see below), whose sum is σ = 108401309856. Its totient is φ = 20636647680.

The previous prime is 55906115537. The next prime is 55906115599. The reversal of 55906115590 is 9551160955.

It is a self number, because there is not a number n which added to its sum of digits gives 55906115590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55906115599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437850 + ... + 550930.

It is an arithmetic number, because the mean of its divisors is an integer number (3387540933).

Almost surely, 2^55906115590 is an apocalyptic number.

55906115590 is a deficient number, since it is larger than the sum of its proper divisors (52495194266).

55906115590 is a wasteful number, since it uses less digits than its factorization.

55906115590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116904.

The product of its (nonzero) digits is 303750, while the sum is 46.

The spelling of 55906115590 in words is "fifty-five billion, nine hundred six million, one hundred fifteen thousand, five hundred ninety".