51127506 has 12 divisors (see below), whose sum is σ = 110776302. Its totient is φ = 17042496.

The previous prime is 51127501. The next prime is 51127507. The reversal of 51127506 is 60572115.

It can be written as a sum of positive squares in only one way, i.e., 41486481 + 9641025 = 6441^2 + 3105^2 .

It is a super-2 number, since 2×51127506² = 5228043739560072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51127506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51127501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1420191 + ... + 1420226.

Almost surely, 2^51127506 is an apocalyptic number.

51127506 is an abundant number, since it is smaller than the sum of its proper divisors (59648796).

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

51127506 is a wasteful number, since it uses less digits than its factorization.

51127506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840425 (or 2840422 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 51127506 is about 7150.3500613606. The cubic root of 51127506 is about 371.1517700866.

The spelling of 51127506 in words is "fifty-one million, one hundred twenty-seven thousand, five hundred six".