55696665 has 16 divisors (see below), whose sum is σ = 89768448. Its totient is φ = 29486976.

The previous prime is 55696633. The next prime is 55696681. The reversal of 55696665 is 56669655.

It is not a de Polignac number, because 55696665 - 2⁵ = 55696633 is a prime.

It is a super-3 number, since 3×55696665³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11497 + ... + 15606.

It is an arithmetic number, because the mean of its divisors is an integer number (5610528).

Almost surely, 2^55696665 is an apocalyptic number.

It is an amenable number.

55696665 is a deficient number, since it is larger than the sum of its proper divisors (34071783).

55696665 is a wasteful number, since it uses less digits than its factorization.

55696665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27248.

The product of its digits is 1458000, while the sum is 48.

The square root of 55696665 is about 7463.0198311407. The cubic root of 55696665 is about 381.8942010305.

The spelling of 55696665 in words is "fifty-five million, six hundred ninety-six thousand, six hundred sixty-five".