15251965 has 16 divisors (see below), whose sum is σ = 19393920. Its totient is φ = 11482560.

The previous prime is 15251953. The next prime is 15251983. The reversal of 15251965 is 56915251.

It is not a de Polignac number, because 15251965 - 2¹¹ = 15249917 is a prime.

It is a super-2 number, since 2×15251965² = 465244872722450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15251965.

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, 16752 + ... + 17638.

It is an arithmetic number, because the mean of its divisors is an integer number (1212120).

Almost surely, 2^15251965 is an apocalyptic number.

It is an amenable number.

15251965 is a deficient number, since it is larger than the sum of its proper divisors (4141955).

15251965 is a wasteful number, since it uses less digits than its factorization.

15251965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092.

The product of its digits is 13500, while the sum is 34.

The square root of 15251965 is about 3905.3764223183. The cubic root of 15251965 is about 247.9944338414.

The spelling of 15251965 in words is "fifteen million, two hundred fifty-one thousand, nine hundred sixty-five".