47115520 has 36 divisors (see below), whose sum is σ = 112859460. Its totient is φ = 18845696.

The previous prime is 47115499. The next prime is 47115527. The reversal of 47115520 is 2551174.

It can be written as a sum of positive squares in 2 ways, for example, as 17172736 + 29942784 = 4144^2 + 5472^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47115527) 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, 17125 + ... + 19684.

It is an arithmetic number, because the mean of its divisors is an integer number (3134985).

Almost surely, 2^47115520 is an apocalyptic number.

47115520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47115520 is an abundant number, since it is smaller than the sum of its proper divisors (65743940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47115520 is an equidigital number, since it uses as much as digits as its factorization.

47115520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36830 (or 36816 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 47115520 is about 6864.0745916693. The cubic root of 47115520 is about 361.1780338997.

Adding to 47115520 its reverse (2551174), we get a palindrome (49666694).

The spelling of 47115520 in words is "forty-seven million, one hundred fifteen thousand, five hundred twenty".