15725587965 has 16 divisors (see below), whose sum is σ = 25195567488. Its totient is φ = 8375438016.

The previous prime is 15725587909. The next prime is 15725587987. The reversal of 15725587965 is 56978552751.

It is not a de Polignac number, because 15725587965 - 2⁶ = 15725587901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15725587899 and 15725587908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710122 + ... + 731931.

It is an arithmetic number, because the mean of its divisors is an integer number (1574722968).

Almost surely, 2^15725587965 is an apocalyptic number.

15725587965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15725587965 is a deficient number, since it is larger than the sum of its proper divisors (9469979523).

15725587965 is a wasteful number, since it uses less digits than its factorization.

15725587965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442788.

The product of its digits is 26460000, while the sum is 60.

The spelling of 15725587965 in words is "fifteen billion, seven hundred twenty-five million, five hundred eighty-seven thousand, nine hundred sixty-five".