25955255427 has 32 divisors (see below), whose sum is σ = 37052536320. Its totient is φ = 16103923200.

The previous prime is 25955255377. The next prime is 25955255449. The reversal of 25955255427 is 72455255952.

It is not a de Polignac number, because 25955255427 - 2⁶ = 25955255363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 25955255427.

It is not an unprimeable number, because it can be changed into a prime (25955255927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4731028 + ... + 4736510.

It is an arithmetic number, because the mean of its divisors is an integer number (1157891760).

Almost surely, 2^25955255427 is an apocalyptic number.

25955255427 is a deficient number, since it is larger than the sum of its proper divisors (11097280893).

25955255427 is a wasteful number, since it uses less digits than its factorization.

25955255427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6523.

The product of its digits is 6300000, while the sum is 51.

The spelling of 25955255427 in words is "twenty-five billion, nine hundred fifty-five million, two hundred fifty-five thousand, four hundred twenty-seven".