25267755005 has 4 divisors (see below), whose sum is σ = 30321306012. Its totient is φ = 20214204000.

The previous prime is 25267754977. The next prime is 25267755043. The reversal of 25267755005 is 50055776252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16607219161 + 8660535844 = 128869^2 + 93062^2 .

It is not a de Polignac number, because 25267755005 - 2³⁴ = 8087885821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526775496 + ... + 2526775505.

It is an arithmetic number, because the mean of its divisors is an integer number (7580326503).

Almost surely, 2^25267755005 is an apocalyptic number.

It is an amenable number.

25267755005 is a deficient number, since it is larger than the sum of its proper divisors (5053551007).

25267755005 is an equidigital number, since it uses as much as digits as its factorization.

25267755005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053551006.

The product of its (nonzero) digits is 735000, while the sum is 44.

The spelling of 25267755005 in words is "twenty-five billion, two hundred sixty-seven million, seven hundred fifty-five thousand, five".