55896665 has 8 divisors (see below), whose sum is σ = 73173888. Its totient is φ = 40652080.

The previous prime is 55896649. The next prime is 55896683. The reversal of 55896665 is 56669855.

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

It is not a de Polignac number, because 55896665 - 2⁴ = 55896649 is a prime.

It is a super-3 number, since 3×55896665³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian 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, 508097 + ... + 508206.

It is an arithmetic number, because the mean of its divisors is an integer number (9146736).

Almost surely, 2^55896665 is an apocalyptic number.

55896665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55896665 is a deficient number, since it is larger than the sum of its proper divisors (17277223).

55896665 is a wasteful number, since it uses less digits than its factorization.

55896665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016319.

The product of its digits is 1944000, while the sum is 50.

The square root of 55896665 is about 7476.4072253991. The cubic root of 55896665 is about 382.3507669652.

The spelling of 55896665 in words is "fifty-five million, eight hundred ninety-six thousand, six hundred sixty-five".