25254661 has 2 divisors, whose sum is σ = 25254662. Its totient is φ = 25254660.

The previous prime is 25254653. The next prime is 25254689. The reversal of 25254661 is 16645252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20304036 + 4950625 = 4506^2 + 2225^2 .

It is a cyclic number.

It is not a de Polignac number, because 25254661 - 2³ = 25254653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25254611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12627330 + 12627331.

It is an arithmetic number, because the mean of its divisors is an integer number (12627331).

Almost surely, 2^25254661 is an apocalyptic number.

It is an amenable number.

25254661 is a deficient number, since it is larger than the sum of its proper divisors (1).

25254661 is an equidigital number, since it uses as much as digits as its factorization.

25254661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 31.

The square root of 25254661 is about 5025.4015759937. The cubic root of 25254661 is about 293.3912659624.

The spelling of 25254661 in words is "twenty-five million, two hundred fifty-four thousand, six hundred sixty-one".