55964015 has 4 divisors (see below), whose sum is σ = 67156824. Its totient is φ = 44771208.

The previous prime is 55964009. The next prime is 55964039. The reversal of 55964015 is 51046955.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55964015 - 2²⁴ = 39186799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5596397 + ... + 5596406.

It is an arithmetic number, because the mean of its divisors is an integer number (16789206).

Almost surely, 2^55964015 is an apocalyptic number.

55964015 is a deficient number, since it is larger than the sum of its proper divisors (11192809).

55964015 is a wasteful number, since it uses less digits than its factorization.

55964015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11192808.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 55964015 is about 7480.9100382240. The cubic root of 55964015 is about 382.5042703896.

The spelling of 55964015 in words is "fifty-five million, nine hundred sixty-four thousand, fifteen".