55310590 has 8 divisors (see below), whose sum is σ = 99559080. Its totient is φ = 22124232.

The previous prime is 55310581. The next prime is 55310617. The reversal of 55310590 is 9501355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55310590² = 6118522732296200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2765520 + ... + 2765539.

It is an arithmetic number, because the mean of its divisors is an integer number (12444885).

Almost surely, 2^55310590 is an apocalyptic number.

55310590 is a deficient number, since it is larger than the sum of its proper divisors (44248490).

55310590 is a wasteful number, since it uses less digits than its factorization.

55310590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5531066.

The product of its (nonzero) digits is 3375, while the sum is 28.

The square root of 55310590 is about 7437.1089813179. The cubic root of 55310590 is about 381.0097567326.

The spelling of 55310590 in words is "fifty-five million, three hundred ten thousand, five hundred ninety".