15017277025 has 9 divisors (see below), whose sum is σ = 18622183321. Its totient is φ = 12013331440.

The previous prime is 15017277007. The next prime is 15017277059. The reversal of 15017277025 is 52077271051.

The square root of 15017277025 is 122545.

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 1878615649 + 13138661376 = 43343^2 + 114624^2 .

It is not a de Polignac number, because 15017277025 - 2¹⁵ = 15017244257 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, 600471 + ... + 624979.

Almost surely, 2^15017277025 is an apocalyptic number.

15017277025 is the 122545-th square number.

15017277025 is the 61273-rd centered octagonal number.

It is an amenable number.

15017277025 is a deficient number, since it is larger than the sum of its proper divisors (3604906296).

15017277025 is an frugal number, since it uses more digits than its factorization.

15017277025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49028 (or 24514 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 37.

The spelling of 15017277025 in words is "fifteen billion, seventeen million, two hundred seventy-seven thousand, twenty-five".