47576521 has 4 divisors (see below), whose sum is σ = 47607700. Its totient is φ = 47545344.

The previous prime is 47576497. The next prime is 47576527. The reversal of 47576521 is 12567574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12567574 = 2 ⋅6283787.

It can be written as a sum of positive squares in 2 ways, for example, as 38576521 + 9000000 = 6211^2 + 3000^2 .

It is a cyclic number.

It is not a de Polignac number, because 47576521 - 2¹⁵ = 47543753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47576527) 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, 13176 + ... + 16393.

It is an arithmetic number, because the mean of its divisors is an integer number (11901925).

Almost surely, 2^47576521 is an apocalyptic number.

It is an amenable number.

47576521 is a deficient number, since it is larger than the sum of its proper divisors (31179).

47576521 is a wasteful number, since it uses less digits than its factorization.

47576521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31178.

The product of its digits is 58800, while the sum is 37.

The square root of 47576521 is about 6897.5735588684. The cubic root of 47576521 is about 362.3521927728.

The spelling of 47576521 in words is "forty-seven million, five hundred seventy-six thousand, five hundred twenty-one".