25607669 has 2 divisors, whose sum is σ = 25607670. Its totient is φ = 25607668.

The previous prime is 25607653. The next prime is 25607677. The reversal of 25607669 is 96670652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21252100 + 4355569 = 4610^2 + 2087^2 .

It is a cyclic number.

It is not a de Polignac number, because 25607669 - 2⁴ = 25607653 is a prime.

It is a super-2 number, since 2×25607669² = 1311505423227122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25607689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12803834 + 12803835.

It is an arithmetic number, because the mean of its divisors is an integer number (12803835).

Almost surely, 2^25607669 is an apocalyptic number.

It is an amenable number.

25607669 is a deficient number, since it is larger than the sum of its proper divisors (1).

25607669 is an equidigital number, since it uses as much as digits as its factorization.

25607669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 25607669 is about 5060.4020591253. The cubic root of 25607669 is about 294.7519469921.

The spelling of 25607669 in words is "twenty-five million, six hundred seven thousand, six hundred sixty-nine".