25360917427 has 4 divisors (see below), whose sum is σ = 25512779376. Its totient is φ = 25209055480.

The previous prime is 25360917419. The next prime is 25360917431. The reversal of 25360917427 is 72471906352.

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

It is a cyclic number.

It is not a de Polignac number, because 25360917427 - 2³ = 25360917419 is a prime.

It is a super-2 number, since 2×25360917427² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25360917487) 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, 75930724 + ... + 75931057.

It is an arithmetic number, because the mean of its divisors is an integer number (6378194844).

Almost surely, 2^25360917427 is an apocalyptic number.

25360917427 is a deficient number, since it is larger than the sum of its proper divisors (151861949).

25360917427 is a wasteful number, since it uses less digits than its factorization.

25360917427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151861948.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 25360917427 in words is "twenty-five billion, three hundred sixty million, nine hundred seventeen thousand, four hundred twenty-seven".