55642610 has 8 divisors (see below), whose sum is σ = 100156716. Its totient is φ = 22257040.

The previous prime is 55642607. The next prime is 55642661. The reversal of 55642610 is 1624655.

It can be written as a sum of positive squares in 2 ways, for example, as 55636681 + 5929 = 7459^2 + 77^2 .

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

It is a super-2 number, since 2×55642610² = 6192200095224200, which contains 22 as substring.

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, 2782121 + ... + 2782140.

Almost surely, 2^55642610 is an apocalyptic number.

55642610 is a deficient number, since it is larger than the sum of its proper divisors (44514106).

55642610 is a wasteful number, since it uses less digits than its factorization.

55642610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5564268.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 55642610 is about 7459.3974287472. The cubic root of 55642610 is about 381.7706150976.

The spelling of 55642610 in words is "fifty-five million, six hundred forty-two thousand, six hundred ten".