15425665125005 has 4 divisors (see below), whose sum is σ = 18510798150012. Its totient is φ = 12340532100000.

The previous prime is 15425665124999. The next prime is 15425665125029. The reversal of 15425665125005 is 50052156652451.

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 8727191289124 + 6698473835881 = 2954182^2 + 2588141^2 .

It is not a de Polignac number, because 15425665125005 - 2³⁶ = 15356945648269 is a prime.

It is a super-2 number, since 2×15425665125005² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 1542566512496 + ... + 1542566512505.

It is an arithmetic number, because the mean of its divisors is an integer number (4627699537503).

Almost surely, 2^{15425665125005} is an apocalyptic number.

It is an amenable number.

15425665125005 is a deficient number, since it is larger than the sum of its proper divisors (3085133025007).

15425665125005 is an equidigital number, since it uses as much as digits as its factorization.

15425665125005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085133025006.

The product of its (nonzero) digits is 1800000, while the sum is 47.

The spelling of 15425665125005 in words is "fifteen trillion, four hundred twenty-five billion, six hundred sixty-five million, one hundred twenty-five thousand, five".