55056615 has 16 divisors (see below), whose sum is σ = 88965216. Its totient is φ = 29072000.

The previous prime is 55056613. The next prime is 55056619. The reversal of 55056615 is 51665055.

It is not a de Polignac number, because 55056615 - 2¹ = 55056613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55056613) 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, 16656 + ... + 19685.

It is an arithmetic number, because the mean of its divisors is an integer number (5560326).

Almost surely, 2^55056615 is an apocalyptic number.

55056615 is a deficient number, since it is larger than the sum of its proper divisors (33908601).

55056615 is a wasteful number, since it uses less digits than its factorization.

55056615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36450.

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

The square root of 55056615 is about 7420.0144878565. The cubic root of 55056615 is about 380.4256886945.

The spelling of 55056615 in words is "fifty-five million, fifty-six thousand, six hundred fifteen".