15001390125265 has 4 divisors (see below), whose sum is σ = 18001668150324. Its totient is φ = 12001112100208.

The previous prime is 15001390125257. The next prime is 15001390125277. The reversal of 15001390125265 is 56252109310051.

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 10966880010384 + 4034510114881 = 3311628^2 + 2008609^2 .

It is a cyclic number.

It is not a de Polignac number, because 15001390125265 - 2³ = 15001390125257 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1500139012522 + ... + 1500139012531.

It is an arithmetic number, because the mean of its divisors is an integer number (4500417037581).

Almost surely, 2^{15001390125265} is an apocalyptic number.

It is an amenable number.

15001390125265 is a deficient number, since it is larger than the sum of its proper divisors (3000278025059).

15001390125265 is an equidigital number, since it uses as much as digits as its factorization.

15001390125265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000278025058.

The product of its (nonzero) digits is 81000, while the sum is 40.

The spelling of 15001390125265 in words is "fifteen trillion, one billion, three hundred ninety million, one hundred twenty-five thousand, two hundred sixty-five".