1115226025 has 9 divisors (see below), whose sum is σ = 1383087351. Its totient is φ = 892047240.

The previous prime is 1115226019. The next prime is 1115226067. The reversal of 1115226025 is 5206225111.

The square root of 1115226025 is 33395.

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., 401481369 + 713744656 = 20037^2 + 26716^2 .

It is not a de Polignac number, because 1115226025 - 2¹⁹ = 1114701737 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 polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 163636 + ... + 170314.

Almost surely, 2^1115226025 is an apocalyptic number.

1115226025 is the 33395-th square number.

1115226025 is the 16698-th centered octagonal number.

It is an amenable number.

1115226025 is a deficient number, since it is larger than the sum of its proper divisors (267861326).

1115226025 is an frugal number, since it uses more digits than its factorization.

1115226025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13368 (or 6684 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The cubic root of 1115226025 is about 1037.0211929123.

Multiplying 1115226025 by its sum of digits (25), we get a square (27880650625 = 166975²).

1115226025 divided by its sum of digits (25) gives a square (44609041 = 6679²).

The spelling of 1115226025 in words is "one billion, one hundred fifteen million, two hundred twenty-six thousand, twenty-five".