55880590 has 32 divisors (see below), whose sum is σ = 102435840. Its totient is φ = 21945504.

The previous prime is 55880579. The next prime is 55880597. The reversal of 55880590 is 9508855.

Together with 46555250 it forms an amicable pair .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55880597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233691 + ... + 233929.

It is an arithmetic number, because the mean of its divisors is an integer number (3201120).

Almost surely, 2^55880590 is an apocalyptic number.

55880590 is a deficient number, since it is larger than the sum of its proper divisors (46555250).

55880590 is a wasteful number, since it uses less digits than its factorization.

55880590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 72000, while the sum is 40.

The square root of 55880590 is about 7475.3320996461. The cubic root of 55880590 is about 382.3141107660.

The spelling of 55880590 in words is "fifty-five million, eight hundred eighty thousand, five hundred ninety".