51356253 has 16 divisors (see below), whose sum is σ = 74079936. Its totient is φ = 31459200.

The previous prime is 51356251. The next prime is 51356257. The reversal of 51356253 is 35265315.

It is not a de Polignac number, because 51356253 - 2¹ = 51356251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51356253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51356251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5953 + ... + 11753.

It is an arithmetic number, because the mean of its divisors is an integer number (4629996).

Almost surely, 2^51356253 is an apocalyptic number.

It is an amenable number.

51356253 is a deficient number, since it is larger than the sum of its proper divisors (22723683).

51356253 is a wasteful number, since it uses less digits than its factorization.

51356253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6044.

The product of its digits is 13500, while the sum is 30.

The square root of 51356253 is about 7166.3277206670. The cubic root of 51356253 is about 371.7044637929.

The spelling of 51356253 in words is "fifty-one million, three hundred fifty-six thousand, two hundred fifty-three".