51514523253 has 6 divisors (see below), whose sum is σ = 74409866934. Its totient is φ = 34343015496.

The previous prime is 51514523237. The next prime is 51514523257. The reversal of 51514523253 is 35232541515.

51514523253 is a `hidden beast` number, since 5 + 151 + 452 + 3 + 2 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45395841969 + 6118681284 = 213063^2 + 78222^2 .

It is not a de Polignac number, because 51514523253 - 2⁴ = 51514523237 is a prime.

It is a super-2 number, since 2×51514523253² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51514523257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2861917950 + ... + 2861917967.

It is an arithmetic number, because the mean of its divisors is an integer number (12401644489).

Almost surely, 2^51514523253 is an apocalyptic number.

It is an amenable number.

51514523253 is a deficient number, since it is larger than the sum of its proper divisors (22895343681).

51514523253 is a wasteful number, since it uses less digits than its factorization.

51514523253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5723835923 (or 5723835920 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 51514523253 in words is "fifty-one billion, five hundred fourteen million, five hundred twenty-three thousand, two hundred fifty-three".