25056587427 has 4 divisors (see below), whose sum is σ = 33408783240. Its totient is φ = 16704391616.

The previous prime is 25056587411. The next prime is 25056587443. The reversal of 25056587427 is 72478565052.

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

It is an interprime number because it is at equal distance from previous prime (25056587411) and next prime (25056587443).

It is a cyclic number.

It is not a de Polignac number, because 25056587427 - 2⁴ = 25056587411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25056587427.

It is not an unprimeable number, because it can be changed into a prime (25056587477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4176097902 + ... + 4176097907.

It is an arithmetic number, because the mean of its divisors is an integer number (8352195810).

Almost surely, 2^25056587427 is an apocalyptic number.

25056587427 is a deficient number, since it is larger than the sum of its proper divisors (8352195813).

25056587427 is an equidigital number, since it uses as much as digits as its factorization.

25056587427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352195812.

The product of its (nonzero) digits is 4704000, while the sum is 51.

The spelling of 25056587427 in words is "twenty-five billion, fifty-six million, five hundred eighty-seven thousand, four hundred twenty-seven".