55013965 has 8 divisors (see below), whose sum is σ = 66116448. Its totient is φ = 43944720.

The previous prime is 55013927. The next prime is 55013971. The reversal of 55013965 is 56931055.

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

It is a de Polignac number, because none of the positive numbers 2^k-55013965 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55013965.

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, 4507 + ... + 11416.

It is an arithmetic number, because the mean of its divisors is an integer number (8264556).

Almost surely, 2^55013965 is an apocalyptic number.

It is an amenable number.

55013965 is a deficient number, since it is larger than the sum of its proper divisors (11102483).

55013965 is a wasteful number, since it uses less digits than its factorization.

55013965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16619.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 55013965 is about 7417.1399474461. The cubic root of 55013965 is about 380.3274301591.

The spelling of 55013965 in words is "fifty-five million, thirteen thousand, nine hundred sixty-five".