55232015 has 4 divisors (see below), whose sum is σ = 66278424. Its totient is φ = 44185608.

The previous prime is 55232011. The next prime is 55232017. The reversal of 55232015 is 51023255.

55232015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55232015 - 2² = 55232011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55232011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5523197 + ... + 5523206.

It is an arithmetic number, because the mean of its divisors is an integer number (16569606).

Almost surely, 2^55232015 is an apocalyptic number.

55232015 is a deficient number, since it is larger than the sum of its proper divisors (11046409).

55232015 is a wasteful number, since it uses less digits than its factorization.

55232015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11046408.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55232015 is about 7431.8244731694. The cubic root of 55232015 is about 380.8292486265.

The spelling of 55232015 in words is "fifty-five million, two hundred thirty-two thousand, fifteen".