25057651 has 2 divisors, whose sum is σ = 25057652. Its totient is φ = 25057650.

The previous prime is 25057639. The next prime is 25057667. The reversal of 25057651 is 15675052.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25057651 is a prime.

It is not a weakly prime, because it can be changed into another prime (25057631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12528825 + 12528826.

It is an arithmetic number, because the mean of its divisors is an integer number (12528826).

Almost surely, 2^25057651 is an apocalyptic number.

25057651 is a deficient number, since it is larger than the sum of its proper divisors (1).

25057651 is an equidigital number, since it uses as much as digits as its factorization.

25057651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 25057651 is about 5005.7617801889. The cubic root of 25057651 is about 292.6263646667.

The spelling of 25057651 in words is "twenty-five million, fifty-seven thousand, six hundred fifty-one".