51415132 has 24 divisors (see below), whose sum is σ = 91198800. Its totient is φ = 25361280.

The previous prime is 51415129. The next prime is 51415139. The reversal of 51415132 is 23151415.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51415139) 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, 167323 + ... + 167629.

It is an arithmetic number, because the mean of its divisors is an integer number (3799950).

Almost surely, 2^51415132 is an apocalyptic number.

It is an amenable number.

51415132 is a deficient number, since it is larger than the sum of its proper divisors (39783668).

51415132 is a wasteful number, since it uses less digits than its factorization.

51415132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 739 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 51415132 is about 7170.4345753936. The cubic root of 51415132 is about 371.8464603195.

Adding to 51415132 its reverse (23151415), we get a palindrome (74566547).

The spelling of 51415132 in words is "fifty-one million, four hundred fifteen thousand, one hundred thirty-two".