55435646 has 16 divisors (see below), whose sum is σ = 98310240. Its totient is φ = 22938720.

The previous prime is 55435637. The next prime is 55435661. The reversal of 55435646 is 64653455.

It is a happy number.

It is a super-2 number, since 2×55435646² = 6146221694874632, 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 7 ways as a sum of consecutive naturals, for example, 67865 + ... + 68676.

It is an arithmetic number, because the mean of its divisors is an integer number (6144390).

Almost surely, 2^55435646 is an apocalyptic number.

55435646 is a deficient number, since it is larger than the sum of its proper divisors (42874594).

55435646 is a wasteful number, since it uses less digits than its factorization.

55435646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136579.

The product of its digits is 216000, while the sum is 38.

The square root of 55435646 is about 7445.5118024216. The cubic root of 55435646 is about 381.2966920866.

The spelling of 55435646 in words is "fifty-five million, four hundred thirty-five thousand, six hundred forty-six".