55612190 has 8 divisors (see below), whose sum is σ = 100101960. Its totient is φ = 22244872.

The previous prime is 55612189. The next prime is 55612213. The reversal of 55612190 is 9121655.

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

It is a super-2 number, since 2×55612190² = 6185431353192200, 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, 2780600 + ... + 2780619.

It is an arithmetic number, because the mean of its divisors is an integer number (12512745).

Almost surely, 2^55612190 is an apocalyptic number.

55612190 is a deficient number, since it is larger than the sum of its proper divisors (44489770).

55612190 is a wasteful number, since it uses less digits than its factorization.

55612190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561226.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 55612190 is about 7457.3581112885. The cubic root of 55612190 is about 381.7010306602.

The spelling of 55612190 in words is "fifty-five million, six hundred twelve thousand, one hundred ninety".