51110253 has 12 divisors (see below), whose sum is σ = 75036988. Its totient is φ = 33514560.

The previous prime is 51110249. The next prime is 51110287. The reversal of 51110253 is 35201115.

51110253 is a `hidden beast` number, since 511 + 102 + 53 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7193124 + 43917129 = 2682^2 + 6627^2 .

It is not a de Polignac number, because 51110253 - 2² = 51110249 is a prime.

It is a super-2 number, since 2×51110253² = 5224515923448018, 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 (51110233) 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, 46000 + ... + 47097.

Almost surely, 2^51110253 is an apocalyptic number.

It is an amenable number.

51110253 is a deficient number, since it is larger than the sum of its proper divisors (23926735).

51110253 is a wasteful number, since it uses less digits than its factorization.

51110253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93164 (or 93161 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 51110253 is about 7149.1435151352. The cubic root of 51110253 is about 371.1100169456.

Adding to 51110253 its reverse (35201115), we get a palindrome (86311368).

The spelling of 51110253 in words is "fifty-one million, one hundred ten thousand, two hundred fifty-three".