47564515 has 4 divisors (see below), whose sum is σ = 57077424. Its totient is φ = 38051608.

The previous prime is 47564471. The next prime is 47564519. The reversal of 47564515 is 51546574.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51546574 = 2 ⋅25773287.

It is a cyclic number.

It is not a de Polignac number, because 47564515 - 2¹¹ = 47562467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47564519) 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, 4756447 + ... + 4756456.

It is an arithmetic number, because the mean of its divisors is an integer number (14269356).

Almost surely, 2^47564515 is an apocalyptic number.

47564515 is a deficient number, since it is larger than the sum of its proper divisors (9512909).

47564515 is an equidigital number, since it uses as much as digits as its factorization.

47564515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9512908.

The product of its digits is 84000, while the sum is 37.

The square root of 47564515 is about 6896.7031979055. The cubic root of 47564515 is about 362.3217101851.

The spelling of 47564515 in words is "forty-seven million, five hundred sixty-four thousand, five hundred fifteen".