51126525 has 24 divisors (see below), whose sum is σ = 93922560. Its totient is φ = 27267120.

The previous prime is 51126521. The next prime is 51126547. The reversal of 51126525 is 52562115.

51126525 is a `hidden beast` number, since 5 + 1 + 1 + 2 + 652 + 5 = 666.

It is not a de Polignac number, because 51126525 - 2² = 51126521 is a prime.

It is a super-2 number, since 2×51126525² = 5227843117151250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51126521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37197 + ... + 38546.

It is an arithmetic number, because the mean of its divisors is an integer number (3913440).

Almost surely, 2^51126525 is an apocalyptic number.

It is an amenable number.

51126525 is a deficient number, since it is larger than the sum of its proper divisors (42796035).

51126525 is a wasteful number, since it uses less digits than its factorization.

51126525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75762 (or 75751 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 51126525 is about 7150.2814629915. The cubic root of 51126525 is about 371.1493962684.

The spelling of 51126525 in words is "fifty-one million, one hundred twenty-six thousand, five hundred twenty-five".