55651065 has 16 divisors (see below), whose sum is σ = 89134656. Its totient is φ = 29649600.

The previous prime is 55651061. The next prime is 55651069. The reversal of 55651065 is 56015655.

It is an interprime number because it is at equal distance from previous prime (55651061) and next prime (55651069).

It is not a de Polignac number, because 55651065 - 2² = 55651061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55651061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25050 + ... + 27180.

It is an arithmetic number, because the mean of its divisors is an integer number (5570916).

Almost surely, 2^55651065 is an apocalyptic number.

It is an amenable number.

55651065 is a deficient number, since it is larger than the sum of its proper divisors (33483591).

55651065 is a wasteful number, since it uses less digits than its factorization.

55651065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 55651065 is about 7459.9641420050. The cubic root of 55651065 is about 381.7899510410.

The spelling of 55651065 in words is "fifty-five million, six hundred fifty-one thousand, sixty-five".