1102572025 has 27 divisors (see below), whose sum is σ = 1422169671. Its totient is φ = 847922880.

The previous prime is 1102572017. The next prime is 1102572143. The reversal of 1102572025 is 5202752011.

The square root of 1102572025 is 33205.

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

It can be written as a sum of positive squares in 13 ways, for example, as 153685609 + 948886416 = 12397^2 + 30804^2 .

It is not a de Polignac number, because 1102572025 - 2³ = 1102572017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4814611 + ... + 4814839.

Almost surely, 2^1102572025 is an apocalyptic number.

1102572025 is the 33205-th square number.

1102572025 is the 16603-rd centered octagonal number.

It is an amenable number.

1102572025 is a deficient number, since it is larger than the sum of its proper divisors (319597646).

1102572025 is an frugal number, since it uses more digits than its factorization.

1102572025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The cubic root of 1102572025 is about 1033.0840498799.

Multiplying 1102572025 by its sum of digits (25), we get a square (27564300625 = 166025²).

1102572025 divided by its sum of digits (25) gives a square (44102881 = 6641²).

The spelling of 1102572025 in words is "one billion, one hundred two million, five hundred seventy-two thousand, twenty-five".