51492753 has 40 divisors (see below), whose sum is σ = 84022400. Its totient is φ = 31236192.

The previous prime is 51492739. The next prime is 51492757. The reversal of 51492753 is 35729415.

51492753 is a `hidden beast` number, since 514 + 92 + 7 + 53 = 666.

51492753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51492753 - 2⁴ = 51492737 is a prime.

It is a super-2 number, since 2×51492753² = 5303007223038018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51492757) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 82878 + ... + 83496.

It is an arithmetic number, because the mean of its divisors is an integer number (2100560).

It is a vampire number, since it can be written as 5571 ⋅ 9243 (with its own digits).

Almost surely, 2^51492753 is an apocalyptic number.

It is an amenable number.

51492753 is a deficient number, since it is larger than the sum of its proper divisors (32529647).

51492753 is a wasteful number, since it uses less digits than its factorization.

51492753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 714 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 51492753 is about 7175.8451070240. The cubic root of 51492753 is about 372.0334907413.

It can be divided in two parts, 51 and 492753, that added together give a square (492804 = 702²).

The spelling of 51492753 in words is "fifty-one million, four hundred ninety-two thousand, seven hundred fifty-three".