25427254067 has 4 divisors (see below), whose sum is σ = 25433310936. Its totient is φ = 25421197200.

The previous prime is 25427254049. The next prime is 25427254087. The reversal of 25427254067 is 76045272452.

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 25427254067 - 2⁶ = 25427254003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25427254037) 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, 3022133 + ... + 3030534.

It is an arithmetic number, because the mean of its divisors is an integer number (6358327734).

Almost surely, 2^25427254067 is an apocalyptic number.

25427254067 is a deficient number, since it is larger than the sum of its proper divisors (6056869).

25427254067 is an equidigital number, since it uses as much as digits as its factorization.

25427254067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056868.

The product of its (nonzero) digits is 940800, while the sum is 44.

The spelling of 25427254067 in words is "twenty-five billion, four hundred twenty-seven million, two hundred fifty-four thousand, sixty-seven".