55690898 has 4 divisors (see below), whose sum is σ = 83536350. Its totient is φ = 27845448.

The previous prime is 55690879. The next prime is 55690903. The reversal of 55690898 is 89809655.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36881329 + 18809569 = 6073^2 + 4337^2 .

It is a super-2 number, since 2×55690898² = 6202952240092808, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13922723 + ... + 13922726.

Almost surely, 2^55690898 is an apocalyptic number.

55690898 is a deficient number, since it is larger than the sum of its proper divisors (27845452).

55690898 is a wasteful number, since it uses less digits than its factorization.

55690898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27845451.

The product of its (nonzero) digits is 777600, while the sum is 50.

The square root of 55690898 is about 7462.6334493930. The cubic root of 55690898 is about 381.8810197513.

The spelling of 55690898 in words is "fifty-five million, six hundred ninety thousand, eight hundred ninety-eight".