1099254025 has 27 divisors (see below), whose sum is σ = 1442725461. Its totient is φ = 830731680.

The previous prime is 1099253933. The next prime is 1099254029. The reversal of 1099254025 is 5204529901.

The square root of 1099254025 is 33155.

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 11309769 + 1087944256 = 3363^2 + 32984^2 .

It is not a de Polignac number, because 1099254025 - 2²¹ = 1097156873 is a prime.

It is a super-2 number, since 2×1099254025² = 2416718822957401250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1099254029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3149551 + ... + 3149899.

Almost surely, 2^1099254025 is an apocalyptic number.

1099254025 is the 33155-th square number.

1099254025 is the 16578-th centered octagonal number.

It is an amenable number.

1099254025 is a deficient number, since it is larger than the sum of its proper divisors (343471436).

1099254025 is an frugal number, since it uses more digits than its factorization.

1099254025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The cubic root of 1099254025 is about 1032.0467126388.

Multiplying 1099254025 by its product of nonzero digits (32400), we get a square (35615830410000 = 5967900²).

The spelling of 1099254025 in words is "one billion, ninety-nine million, two hundred fifty-four thousand, twenty-five".