13154251315525 has 12 divisors (see below), whose sum is σ = 16752116811652. Its totient is φ = 10238984807040.

The previous prime is 13154251315511. The next prime is 13154251315537. The reversal of 13154251315525 is 52551315245131.

It can be written as a sum of positive squares in 6 ways, for example, as 200824081956 + 12953427233569 = 448134^2 + 3599087^2 .

It is not a de Polignac number, because 13154251315525 - 2¹⁹ = 13154250791237 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7110405192 + ... + 7110407041.

Almost surely, 2^{13154251315525} is an apocalyptic number.

It is an amenable number.

13154251315525 is a deficient number, since it is larger than the sum of its proper divisors (3597865496127).

13154251315525 is a wasteful number, since it uses less digits than its factorization.

13154251315525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14220812280 (or 14220812275 counting only the distinct ones).

The product of its digits is 450000, while the sum is 43.

The spelling of 13154251315525 in words is "thirteen trillion, one hundred fifty-four billion, two hundred fifty-one million, three hundred fifteen thousand, five hundred twenty-five".