47825931 has 16 divisors (see below), whose sum is σ = 66240000. Its totient is φ = 30671328.

The previous prime is 47825923. The next prime is 47825951. The reversal of 47825931 is 13952874.

It is not a de Polignac number, because 47825931 - 2³ = 47825923 is a prime.

It is a super-2 number, since 2×47825931² = 4574639352033522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47825931.

It is not an unprimeable number, because it can be changed into a prime (47825951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5445 + ... + 11193.

It is an arithmetic number, because the mean of its divisors is an integer number (4140000).

Almost surely, 2^47825931 is an apocalyptic number.

47825931 is a deficient number, since it is larger than the sum of its proper divisors (18414069).

47825931 is a wasteful number, since it uses less digits than its factorization.

47825931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5858.

The product of its digits is 60480, while the sum is 39.

The square root of 47825931 is about 6915.6294724342. The cubic root of 47825931 is about 362.9842748312.

The spelling of 47825931 in words is "forty-seven million, eight hundred twenty-five thousand, nine hundred thirty-one".