55080890 has 16 divisors (see below), whose sum is σ = 99281160. Its totient is φ = 22002240.

The previous prime is 55080887. The next prime is 55080911. The reversal of 55080890 is 9808055.

It can be written as a sum of positive squares in 4 ways, for example, as 42471289 + 12609601 = 6517^2 + 3551^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55080890.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4856 + ... + 11564.

Almost surely, 2^55080890 is an apocalyptic number.

55080890 is a deficient number, since it is larger than the sum of its proper divisors (44200270).

55080890 is a wasteful number, since it uses less digits than its factorization.

55080890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 55080890 is about 7421.6500860658. The cubic root of 55080890 is about 380.4815916149.

The spelling of 55080890 in words is "fifty-five million, eighty thousand, eight hundred ninety".