63299256253 has 4 divisors (see below), whose sum is σ = 63627231868. Its totient is φ = 62971280640.

The previous prime is 63299256151. The next prime is 63299256263. The reversal of 63299256253 is 35265299236.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12826242009 + 50473014244 = 113253^2 + 224662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63299256253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63299256253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63299256263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163987518 + ... + 163987903.

It is an arithmetic number, because the mean of its divisors is an integer number (15906807967).

Almost surely, 2^63299256253 is an apocalyptic number.

It is an amenable number.

63299256253 is a deficient number, since it is larger than the sum of its proper divisors (327975615).

63299256253 is a wasteful number, since it uses less digits than its factorization.

63299256253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327975614.

The product of its digits is 5248800, while the sum is 52.

The spelling of 63299256253 in words is "sixty-three billion, two hundred ninety-nine million, two hundred fifty-six thousand, two hundred fifty-three".