25253554567 has 2 divisors, whose sum is σ = 25253554568. Its totient is φ = 25253554566.

The previous prime is 25253554541. The next prime is 25253554619. The reversal of 25253554567 is 76545535252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25253554567 - 2²⁷ = 25119336839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25253554567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25253554267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12626777283 + 12626777284.

It is an arithmetic number, because the mean of its divisors is an integer number (12626777284).

Almost surely, 2^25253554567 is an apocalyptic number.

25253554567 is a deficient number, since it is larger than the sum of its proper divisors (1).

25253554567 is an equidigital number, since it uses as much as digits as its factorization.

25253554567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300000, while the sum is 49.

The spelling of 25253554567 in words is "twenty-five billion, two hundred fifty-three million, five hundred fifty-four thousand, five hundred sixty-seven".