1513251303253 has 4 divisors (see below), whose sum is σ = 1513263077280. Its totient is φ = 1513239529228.

The previous prime is 1513251303247. The next prime is 1513251303257. The reversal of 1513251303253 is 3523031523151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1513251303253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513251303257) 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, 5692075 + ... + 5951992.

It is an arithmetic number, because the mean of its divisors is an integer number (378315769320).

Almost surely, 2^{1513251303253} is an apocalyptic number.

It is an amenable number.

1513251303253 is a deficient number, since it is larger than the sum of its proper divisors (11774027).

1513251303253 is a wasteful number, since it uses less digits than its factorization.

1513251303253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11774026.

The product of its (nonzero) digits is 40500, while the sum is 34.

The spelling of 1513251303253 in words is "one trillion, five hundred thirteen billion, two hundred fifty-one million, three hundred three thousand, two hundred fifty-three".