47013531 has 4 divisors (see below), whose sum is σ = 62684712. Its totient is φ = 31342352.

The previous prime is 47013521. The next prime is 47013623. The reversal of 47013531 is 13531074.

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 47013531 - 2¹⁰ = 47012507 is a prime.

It is a super-2 number, since 2×47013531² = 4420544194175922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47013521) 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, 7835586 + ... + 7835591.

It is an arithmetic number, because the mean of its divisors is an integer number (15671178).

Almost surely, 2^47013531 is an apocalyptic number.

47013531 is a deficient number, since it is larger than the sum of its proper divisors (15671181).

47013531 is a wasteful number, since it uses less digits than its factorization.

47013531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15671180.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 47013531 is about 6856.6413789843. The cubic root of 47013531 is about 360.9172366241.

The spelling of 47013531 in words is "forty-seven million, thirteen thousand, five hundred thirty-one".