25005453679 has 2 divisors, whose sum is σ = 25005453680. Its totient is φ = 25005453678.

The previous prime is 25005453677. The next prime is 25005453727. The reversal of 25005453679 is 97635450052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25005453679 - 2¹ = 25005453677 is a prime.

It is a super-2 number, since 2×25005453679² (a number of 22 digits) contains 22 as substring.

Together with 25005453677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25005453673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12502726839 + 12502726840.

It is an arithmetic number, because the mean of its divisors is an integer number (12502726840).

Almost surely, 2^25005453679 is an apocalyptic number.

25005453679 is a deficient number, since it is larger than the sum of its proper divisors (1).

25005453679 is an equidigital number, since it uses as much as digits as its factorization.

25005453679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 25005453679 in words is "twenty-five billion, five million, four hundred fifty-three thousand, six hundred seventy-nine".