25055258026 has 4 divisors (see below), whose sum is σ = 37582887042. Its totient is φ = 12527629012.

The previous prime is 25055257993. The next prime is 25055258027. The reversal of 25055258026 is 62085255052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16275380625 + 8779877401 = 127575^2 + 93701^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 25055258026.

It is not an unprimeable number, because it can be changed into a prime (25055258027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6263814505 + ... + 6263814508.

Almost surely, 2^25055258026 is an apocalyptic number.

25055258026 is a deficient number, since it is larger than the sum of its proper divisors (12527629016).

25055258026 is a wasteful number, since it uses less digits than its factorization.

25055258026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12527629015.

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 25055258026 in words is "twenty-five billion, fifty-five million, two hundred fifty-eight thousand, twenty-six".