51713253 has 12 divisors (see below), whose sum is σ = 75243948. Its totient is φ = 34223040.

The previous prime is 51713251. The next prime is 51713261. The reversal of 51713253 is 35231715.

It can be written as a sum of positive squares in 2 ways, for example, as 11985444 + 39727809 = 3462^2 + 6303^2 .

It is not a de Polignac number, because 51713253 - 2¹ = 51713251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51713251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19738 + ... + 22203.

It is an arithmetic number, because the mean of its divisors is an integer number (6270329).

Almost surely, 2^51713253 is an apocalyptic number.

It is an amenable number.

51713253 is a deficient number, since it is larger than the sum of its proper divisors (23530695).

51713253 is a wasteful number, since it uses less digits than its factorization.

51713253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42084 (or 42081 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 51713253 is about 7191.1927383432. The cubic root of 51713253 is about 372.5637696929.

Adding to 51713253 its reverse (35231715), we get a palindrome (86944968).

The spelling of 51713253 in words is "fifty-one million, seven hundred thirteen thousand, two hundred fifty-three".