51253172 has 12 divisors (see below), whose sum is σ = 89750976. Its totient is φ = 25610040.

The previous prime is 51253133. The next prime is 51253183. The reversal of 51253172 is 27135215.

51253172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×51253172³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5147 + ... + 11357.

It is an arithmetic number, because the mean of its divisors is an integer number (7479248).

Almost surely, 2^51253172 is an apocalyptic number.

It is an amenable number.

51253172 is a deficient number, since it is larger than the sum of its proper divisors (38497804).

51253172 is a wasteful number, since it uses less digits than its factorization.

51253172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8278 (or 8276 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 51253172 is about 7159.1320703001. The cubic root of 51253172 is about 371.4556052175.

Adding to 51253172 its reverse (27135215), we get a palindrome (78388387).

The spelling of 51253172 in words is "fifty-one million, two hundred fifty-three thousand, one hundred seventy-two".