47122512 has 40 divisors (see below), whose sum is σ = 124036704. Its totient is φ = 15410304.

The previous prime is 47122501. The next prime is 47122513. The reversal of 47122512 is 21522174.

It is a super-2 number, since 2×47122512² = 4441062274380288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47122513) 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, 6718 + ... + 11805.

Almost surely, 2^47122512 is an apocalyptic number.

It is an amenable number.

47122512 is an abundant number, since it is smaller than the sum of its proper divisors (76914192).

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

47122512 is a wasteful number, since it uses less digits than its factorization.

47122512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18587 (or 18581 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 47122512 is about 6864.5838912493. The cubic root of 47122512 is about 361.1958994346.

Adding to 47122512 its reverse (21522174), we get a palindrome (68644686).

The spelling of 47122512 in words is "forty-seven million, one hundred twenty-two thousand, five hundred twelve".