51179525 has 6 divisors (see below), whose sum is σ = 63462642. Its totient is φ = 40943600.

The previous prime is 51179509. The next prime is 51179561. The reversal of 51179525 is 52597115.

It can be written as a sum of positive squares in 3 ways, for example, as 1378276 + 49801249 = 1174^2 + 7057^2 .

It is not a de Polignac number, because 51179525 - 2⁴ = 51179509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1023566 + ... + 1023615.

It is an arithmetic number, because the mean of its divisors is an integer number (10577107).

Almost surely, 2^51179525 is an apocalyptic number.

It is an amenable number.

51179525 is a deficient number, since it is larger than the sum of its proper divisors (12283117).

51179525 is a wasteful number, since it uses less digits than its factorization.

51179525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047191 (or 2047186 counting only the distinct ones).

The product of its digits is 15750, while the sum is 35.

The square root of 51179525 is about 7153.9866508123. The cubic root of 51179525 is about 371.2776018960.

The spelling of 51179525 in words is "fifty-one million, one hundred seventy-nine thousand, five hundred twenty-five".