51475525 has 12 divisors (see below), whose sum is σ = 64110852. Its totient is φ = 40999040.

The previous prime is 51475483. The next prime is 51475537. The reversal of 51475525 is 52557415.

It can be written as a sum of positive squares in 6 ways, for example, as 338724 + 51136801 = 582^2 + 7151^2 .

It is not a de Polignac number, because 51475525 - 2⁹ = 51475013 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 1407 + ... + 10243.

It is an arithmetic number, because the mean of its divisors is an integer number (5342571).

Almost surely, 2^51475525 is an apocalyptic number.

It is an amenable number.

51475525 is a deficient number, since it is larger than the sum of its proper divisors (12635327).

51475525 is a wasteful number, since it uses less digits than its factorization.

51475525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9080 (or 9075 counting only the distinct ones).

The product of its digits is 35000, while the sum is 34.

The square root of 51475525 is about 7174.6445905006. The cubic root of 51475525 is about 371.9919955305.

The spelling of 51475525 in words is "fifty-one million, four hundred seventy-five thousand, five hundred twenty-five".