55480590 has 48 divisors (see below), whose sum is σ = 157365936. Its totient is φ = 13449600.

The previous prime is 55480583. The next prime is 55480609. The reversal of 55480590 is 9508455.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27031 + ... + 29010.

It is an arithmetic number, because the mean of its divisors is an integer number (3278457).

Almost surely, 2^55480590 is an apocalyptic number.

55480590 is an abundant number, since it is smaller than the sum of its proper divisors (101885346).

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

55480590 is a wasteful number, since it uses less digits than its factorization.

55480590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56065 (or 56062 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 55480590 is about 7448.5293850531. The cubic root of 55480590 is about 381.3997086510.

The spelling of 55480590 in words is "fifty-five million, four hundred eighty thousand, five hundred ninety".