15952953025 has 9 divisors (see below), whose sum is σ = 19782444873. Its totient is φ = 12761857200.

The previous prime is 15952953011. The next prime is 15952953043. The reversal of 15952953025 is 52035925951.

It is a happy number.

The square root of 15952953025 is 126305.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4507376769 + 11445576256 = 67137^2 + 106984^2 .

It is not a de Polignac number, because 15952953025 - 2⁵ = 15952952993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 618895 + ... + 644155.

Almost surely, 2^15952953025 is an apocalyptic number.

15952953025 is the 126305-th square number.

15952953025 is the 63153-rd centered octagonal number.

It is an amenable number.

15952953025 is a deficient number, since it is larger than the sum of its proper divisors (3829491848).

15952953025 is an frugal number, since it uses more digits than its factorization.

15952953025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50532 (or 25266 counting only the distinct ones).

The product of its (nonzero) digits is 607500, while the sum is 46.

The spelling of 15952953025 in words is "fifteen billion, nine hundred fifty-two million, nine hundred fifty-three thousand, twenty-five".