2689897225 has 12 divisors (see below), whose sum is σ = 3425621644. Its totient is φ = 2093757120.

The previous prime is 2689897193. The next prime is 2689897229. The reversal of 2689897225 is 5227989862.

It can be written as a sum of positive squares in 6 ways, for example, as 13697401 + 2676199824 = 3701^2 + 51732^2 .

It is not a de Polignac number, because 2689897225 - 2⁵ = 2689897193 is a prime.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2689897225.

It is not an unprimeable number, because it can be changed into a prime (2689897229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1453074 + ... + 1454923.

Almost surely, 2^2689897225 is an apocalyptic number.

2689897225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2689897225 is a deficient number, since it is larger than the sum of its proper divisors (735724419).

2689897225 is a wasteful number, since it uses less digits than its factorization.

2689897225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908044 (or 2908039 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 58.

The square root of 2689897225 is about 51864.2191207002. The cubic root of 2689897225 is about 1390.7377042687.

The spelling of 2689897225 in words is "two billion, six hundred eighty-nine million, eight hundred ninety-seven thousand, two hundred twenty-five".