51170572 has 12 divisors (see below), whose sum is σ = 94261720. Its totient is φ = 24238656.

The previous prime is 51170569. The next prime is 51170573. The reversal of 51170572 is 27507115.

It is a self number, because there is not a number n which added to its sum of digits gives 51170572.

It is not an unprimeable number, because it can be changed into a prime (51170573) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 336573 + ... + 336724.

Almost surely, 2^51170572 is an apocalyptic number.

It is an amenable number.

51170572 is a deficient number, since it is larger than the sum of its proper divisors (43091148).

51170572 is a wasteful number, since it uses less digits than its factorization.

51170572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673320 (or 673318 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 51170572 is about 7153.3608884216. The cubic root of 51170572 is about 371.2559510358.

Adding to 51170572 its reverse (27507115), we get a palindrome (78677687).

The spelling of 51170572 in words is "fifty-one million, one hundred seventy thousand, five hundred seventy-two".