15312102534425 has 6 divisors (see below), whose sum is σ = 18987007142718. Its totient is φ = 12249682027520.

The previous prime is 15312102534409. The next prime is 15312102534431. The reversal of 15312102534425 is 52443520121351.

It can be written as a sum of positive squares in 3 ways, for example, as 2456808591241 + 12855293943184 = 1567421^2 + 3585428^2 .

It is not a de Polignac number, because 15312102534425 - 2⁴ = 15312102534409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306242050664 + ... + 306242050713.

It is an arithmetic number, because the mean of its divisors is an integer number (3164501190453).

Almost surely, 2^{15312102534425} is an apocalyptic number.

It is an amenable number.

15312102534425 is a deficient number, since it is larger than the sum of its proper divisors (3674904608293).

15312102534425 is an equidigital number, since it uses as much as digits as its factorization.

15312102534425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612484101387 (or 612484101382 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 15312102534425 its reverse (52443520121351), we get a palindrome (67755622655776).

The spelling of 15312102534425 in words is "fifteen trillion, three hundred twelve billion, one hundred two million, five hundred thirty-four thousand, four hundred twenty-five".