47125813 has 8 divisors (see below), whose sum is σ = 53932032. Its totient is φ = 40338096.

The previous prime is 47125777. The next prime is 47125817. The reversal of 47125813 is 31852174.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47125813 - 2¹⁷ = 46994741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47125817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1356 + ... + 9802.

It is an arithmetic number, because the mean of its divisors is an integer number (6741504).

Almost surely, 2^47125813 is an apocalyptic number.

It is an amenable number.

47125813 is a deficient number, since it is larger than the sum of its proper divisors (6806219).

47125813 is an equidigital number, since it uses as much as digits as its factorization.

47125813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9251.

The product of its digits is 6720, while the sum is 31.

The square root of 47125813 is about 6864.8243240450. The cubic root of 47125813 is about 361.2043333357.

Adding to 47125813 its reverse (31852174), we get a palindrome (78977987).

The spelling of 47125813 in words is "forty-seven million, one hundred twenty-five thousand, eight hundred thirteen".