25252775266 has 8 divisors (see below), whose sum is σ = 39185341020. Its totient is φ = 12190994928.

The previous prime is 25252775263. The next prime is 25252775269. The reversal of 25252775266 is 66257725252.

It is an interprime number because it is at equal distance from previous prime (25252775263) and next prime (25252775269).

It can be written as a sum of positive squares in 2 ways, for example, as 25239994641 + 12780625 = 158871^2 + 3575^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (25252775263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217696281 + ... + 217696396.

Almost surely, 2^25252775266 is an apocalyptic number.

25252775266 is a deficient number, since it is larger than the sum of its proper divisors (13932565754).

25252775266 is a wasteful number, since it uses less digits than its factorization.

25252775266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435392708.

The product of its digits is 3528000, while the sum is 49.

The spelling of 25252775266 in words is "twenty-five billion, two hundred fifty-two million, seven hundred seventy-five thousand, two hundred sixty-six".