25294013 has 2 divisors, whose sum is σ = 25294014. Its totient is φ = 25294012.

The previous prime is 25293991. The next prime is 25294021. The reversal of 25294013 is 31049252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14417209 + 10876804 = 3797^2 + 3298^2 .

It is a cyclic number.

It is not a de Polignac number, because 25294013 - 2¹² = 25289917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25254013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12647006 + 12647007.

It is an arithmetic number, because the mean of its divisors is an integer number (12647007).

Almost surely, 2^25294013 is an apocalyptic number.

It is an amenable number.

25294013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25294013 is an equidigital number, since it uses as much as digits as its factorization.

25294013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 25294013 is about 5029.3153609612. The cubic root of 25294013 is about 293.5435750287.

The spelling of 25294013 in words is "twenty-five million, two hundred ninety-four thousand, thirteen".