55498490 has 16 divisors (see below), whose sum is σ = 100888200. Its totient is φ = 21979200.

The previous prime is 55498459. The next prime is 55498507. The reversal of 55498490 is 9489455.

It can be written as a sum of positive squares in 4 ways, for example, as 51652969 + 3845521 = 7187^2 + 1961^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26465 + ... + 28484.

Almost surely, 2^55498490 is an apocalyptic number.

55498490 is a deficient number, since it is larger than the sum of its proper divisors (45389710).

55498490 is a wasteful number, since it uses less digits than its factorization.

55498490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55057.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 55498490 is about 7449.7308676220. The cubic root of 55498490 is about 381.4407219177.

The spelling of 55498490 in words is "fifty-five million, four hundred ninety-eight thousand, four hundred ninety".