51132612 has 12 divisors (see below), whose sum is σ = 119309456. Its totient is φ = 17044200.

The previous prime is 51132607. The next prime is 51132623. The reversal of 51132612 is 21623115.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×51132612² = 5229088019885088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2130514 + ... + 2130537.

Almost surely, 2^51132612 is an apocalyptic number.

It is an amenable number.

51132612 is an abundant number, since it is smaller than the sum of its proper divisors (68176844).

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

51132612 is a wasteful number, since it uses less digits than its factorization.

51132612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261058 (or 4261056 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 51132612 is about 7150.7070979030. The cubic root of 51132612 is about 371.1641250661.

Adding to 51132612 its reverse (21623115), we get a palindrome (72755727).

The spelling of 51132612 in words is "fifty-one million, one hundred thirty-two thousand, six hundred twelve".