47520231 has 32 divisors (see below), whose sum is σ = 72811008. Its totient is φ = 27287040.

The previous prime is 47520211. The next prime is 47520233. The reversal of 47520231 is 13202574.

It is not a de Polignac number, because 47520231 - 2⁷ = 47520103 is a prime.

It is a super-2 number, since 2×47520231² = 4516344708586722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47520233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103755 + ... + 104211.

It is an arithmetic number, because the mean of its divisors is an integer number (2275344).

Almost surely, 2^47520231 is an apocalyptic number.

47520231 is a deficient number, since it is larger than the sum of its proper divisors (25290777).

47520231 is a wasteful number, since it uses less digits than its factorization.

47520231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 47520231 is about 6893.4919307997. The cubic root of 47520231 is about 362.2092311191.

It can be divided in two parts, 475 and 20231, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 47520231 in words is "forty-seven million, five hundred twenty thousand, two hundred thirty-one".