15056397 has 12 divisors (see below), whose sum is σ = 21993660. Its totient is φ = 9924288.

The previous prime is 15056369. The next prime is 15056401. The reversal of 15056397 is 79365051.

It is a happy number.

15056397 is a `hidden beast` number, since 1 + 5 + 0 + 563 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7733961 + 7322436 = 2781^2 + 2706^2 .

It is not a de Polignac number, because 15056397 - 2⁶ = 15056333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15051397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8598 + ... + 10199.

It is an arithmetic number, because the mean of its divisors is an integer number (1832805).

Almost surely, 2^15056397 is an apocalyptic number.

It is an amenable number.

15056397 is a deficient number, since it is larger than the sum of its proper divisors (6937263).

15056397 is a wasteful number, since it uses less digits than its factorization.

15056397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18892 (or 18889 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 15056397 is about 3880.2573368270. The cubic root of 15056397 is about 246.9299030164.

The spelling of 15056397 in words is "fifteen million, fifty-six thousand, three hundred ninety-seven".