47215512 has 48 divisors (see below), whose sum is σ = 128310000. Its totient is φ = 15685056.

The previous prime is 47215507. The next prime is 47215523. The reversal of 47215512 is 21551274.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24189 + ... + 26067.

It is an arithmetic number, because the mean of its divisors is an integer number (2673125).

Almost surely, 2^47215512 is an apocalyptic number.

It is an amenable number.

47215512 is an abundant number, since it is smaller than the sum of its proper divisors (81094488).

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

47215512 is a wasteful number, since it uses less digits than its factorization.

47215512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240 (or 2233 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 47215512 is about 6871.3544516347. The cubic root of 47215512 is about 361.4333595013.

Adding to 47215512 its reverse (21551274), we get a palindrome (68766786).

The spelling of 47215512 in words is "forty-seven million, two hundred fifteen thousand, five hundred twelve".