55740590 has 32 divisors (see below), whose sum is σ = 103109760. Its totient is φ = 21685504.

The previous prime is 55740589. The next prime is 55740673. The reversal of 55740590 is 9504755.

It is a self number, because there is not a number n which added to its sum of digits gives 55740590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109256 + ... + 109764.

It is an arithmetic number, because the mean of its divisors is an integer number (3222180).

Almost surely, 2^55740590 is an apocalyptic number.

55740590 is a deficient number, since it is larger than the sum of its proper divisors (47369170).

55740590 is a wasteful number, since it uses less digits than its factorization.

55740590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 55740590 is about 7465.9620947337. The cubic root of 55740590 is about 381.9945678714.

The spelling of 55740590 in words is "fifty-five million, seven hundred forty thousand, five hundred ninety".