15056047 has 4 divisors (see below), whose sum is σ = 15268176. Its totient is φ = 14843920.

The previous prime is 15056029. The next prime is 15056051. The reversal of 15056047 is 74065051.

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 15056047 - 2¹⁵ = 15023279 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 (15056087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105958 + ... + 106099.

It is an arithmetic number, because the mean of its divisors is an integer number (3817044).

Almost surely, 2^15056047 is an apocalyptic number.

15056047 is a deficient number, since it is larger than the sum of its proper divisors (212129).

15056047 is an equidigital number, since it uses as much as digits as its factorization.

15056047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212128.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 15056047 is about 3880.2122364634. The cubic root of 15056047 is about 246.9279896295.

It can be divided in two parts, 150 and 56047, that multiplied together give a triangular number (8407050 = T₄₁₀₀).

The spelling of 15056047 in words is "fifteen million, fifty-six thousand, forty-seven".