51336747 has 40 divisors (see below), whose sum is σ = 95622912. Its totient is φ = 26665200.

The previous prime is 51336743. The next prime is 51336749. The reversal of 51336747 is 74763315.

It is not a de Polignac number, because 51336747 - 2² = 51336743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51336743) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2122 + ... + 10352.

Almost surely, 2^51336747 is an apocalyptic number.

51336747 is a deficient number, since it is larger than the sum of its proper divisors (44286165).

51336747 is a wasteful number, since it uses less digits than its factorization.

51336747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8261 (or 8252 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 51336747 is about 7164.9666433278. The cubic root of 51336747 is about 371.6573978889.

The spelling of 51336747 in words is "fifty-one million, three hundred thirty-six thousand, seven hundred forty-seven".