2691160225 has 30 divisors (see below), whose sum is σ = 3616074670. Its totient is φ = 1986791040.

The previous prime is 2691160223. The next prime is 2691160229. The reversal of 2691160225 is 5220611962.

It is a happy number.

It can be written as a sum of positive squares in 15 ways, for example, as 2372858944 + 318301281 = 48712^2 + 17841^2 .

It is not a de Polignac number, because 2691160225 - 2¹ = 2691160223 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2691160223) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 712141 + ... + 715909.

Almost surely, 2^2691160225 is an apocalyptic number.

2691160225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2691160225 is a deficient number, since it is larger than the sum of its proper divisors (924914445).

2691160225 is an frugal number, since it uses more digits than its factorization.

2691160225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831 (or 3787 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 2691160225 is about 51876.3937162174. The cubic root of 2691160225 is about 1390.9553367323.

The spelling of 2691160225 in words is "two billion, six hundred ninety-one million, one hundred sixty thousand, two hundred twenty-five".