55698190 has 16 divisors (see below), whose sum is σ = 100471392. Its totient is φ = 22231584.

The previous prime is 55698179. The next prime is 55698217. The reversal of 55698190 is 9189655.

It is a happy number.

55698190 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55698190² = 6204576738552200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849 + ... + 10588.

It is an arithmetic number, because the mean of its divisors is an integer number (6279462).

Almost surely, 2^55698190 is an apocalyptic number.

55698190 is a deficient number, since it is larger than the sum of its proper divisors (44773202).

55698190 is a wasteful number, since it uses less digits than its factorization.

55698190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11931.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 55698190 is about 7463.1220008787. The cubic root of 55698190 is about 381.8976864776.

The spelling of 55698190 in words is "fifty-five million, six hundred ninety-eight thousand, one hundred ninety".