15216056 has 8 divisors (see below), whose sum is σ = 28530120. Its totient is φ = 7608024.

The previous prime is 15216049. The next prime is 15216059. The reversal of 15216056 is 65061251.

15216056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15216059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950996 + ... + 951011.

It is an arithmetic number, because the mean of its divisors is an integer number (3566265).

Almost surely, 2^15216056 is an apocalyptic number.

It is an amenable number.

15216056 is a deficient number, since it is larger than the sum of its proper divisors (13314064).

15216056 is a wasteful number, since it uses less digits than its factorization.

15216056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902013 (or 1902009 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 15216056 is about 3900.7763329881. The cubic root of 15216056 is about 247.7996560961.

The spelling of 15216056 in words is "fifteen million, two hundred sixteen thousand, fifty-six".