51125526 has 16 divisors (see below), whose sum is σ = 113612400. Its totient is φ = 17041824.

The previous prime is 51125497. The next prime is 51125533. The reversal of 51125526 is 62552115.

It is a super-2 number, since 2×51125526² = 5227638817553352, 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 self number, because there is not a number n which added to its sum of digits gives 51125526.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473331 + ... + 473438.

It is an arithmetic number, because the mean of its divisors is an integer number (7100775).

Almost surely, 2^51125526 is an apocalyptic number.

51125526 is an abundant number, since it is smaller than the sum of its proper divisors (62486874).

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

51125526 is a wasteful number, since it uses less digits than its factorization.

51125526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946780 (or 946774 counting only the distinct ones).

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

The square root of 51125526 is about 7150.2116052604. The cubic root of 51125526 is about 371.1469788627.

The spelling of 51125526 in words is "fifty-one million, one hundred twenty-five thousand, five hundred twenty-six".