1072890025 has 9 divisors (see below), whose sum is σ = 1330586743. Its totient is φ = 858181000.

The previous prime is 1072890019. The next prime is 1072890037. The reversal of 1072890025 is 5200982701.

The square root of 1072890025 is 32755.

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

It can be written as a sum of positive squares in only one way, i.e., 386240409 + 686649616 = 19653^2 + 26204^2 .

It is not a de Polignac number, because 1072890025 - 2⁷ = 1072889897 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, 160500 + ... + 167050.

Almost surely, 2^1072890025 is an apocalyptic number.

1072890025 is the 32755-th square number.

1072890025 is the 16378-th centered octagonal number.

It is an amenable number.

1072890025 is a deficient number, since it is larger than the sum of its proper divisors (257696718).

1072890025 is an frugal number, since it uses more digits than its factorization.

1072890025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13112 (or 6556 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The cubic root of 1072890025 is about 1023.7291487556.

The spelling of 1072890025 in words is "one billion, seventy-two million, eight hundred ninety thousand, twenty-five".