25625651 has 2 divisors, whose sum is σ = 25625652. Its totient is φ = 25625650.

The previous prime is 25625641. The next prime is 25625653. The reversal of 25625651 is 15652652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25625651 - 2¹⁴ = 25609267 is a prime.

Together with 25625653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25625653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12812825 + 12812826.

It is an arithmetic number, because the mean of its divisors is an integer number (12812826).

Almost surely, 2^25625651 is an apocalyptic number.

25625651 is a deficient number, since it is larger than the sum of its proper divisors (1).

25625651 is an equidigital number, since it uses as much as digits as its factorization.

25625651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 32.

The square root of 25625651 is about 5062.1784836175. The cubic root of 25625651 is about 294.8209235861.

It can be divided in two parts, 256 and 25651, that multiplied together give a palindrome (6566656).

The spelling of 25625651 in words is "twenty-five million, six hundred twenty-five thousand, six hundred fifty-one".