25289051 has 2 divisors, whose sum is σ = 25289052. Its totient is φ = 25289050.

The previous prime is 25289041. The next prime is 25289053. The reversal of 25289051 is 15098252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25289051 - 2⁶ = 25288987 is a prime.

It is a super-2 number, since 2×25289051² = 1279072200961202, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 25289053, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25288999 and 25289017.

It is not a weakly prime, because it can be changed into another prime (25289053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12644525 + 12644526.

It is an arithmetic number, because the mean of its divisors is an integer number (12644526).

Almost surely, 2^25289051 is an apocalyptic number.

25289051 is a deficient number, since it is larger than the sum of its proper divisors (1).

25289051 is an equidigital number, since it uses as much as digits as its factorization.

25289051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 25289051 is about 5028.8220290641. The cubic root of 25289051 is about 293.5243786748.

The spelling of 25289051 in words is "twenty-five million, two hundred eighty-nine thousand, fifty-one".