25246993 has 2 divisors, whose sum is σ = 25246994. Its totient is φ = 25246992.

The previous prime is 25246981. The next prime is 25246997. The reversal of 25246993 is 39964252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23882769 + 1364224 = 4887^2 + 1168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25246993 is a prime.

It is not a weakly prime, because it can be changed into another prime (25246997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12623496 + 12623497.

It is an arithmetic number, because the mean of its divisors is an integer number (12623497).

Almost surely, 2^25246993 is an apocalyptic number.

It is an amenable number.

25246993 is a deficient number, since it is larger than the sum of its proper divisors (1).

25246993 is an equidigital number, since it uses as much as digits as its factorization.

25246993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 40.

The square root of 25246993 is about 5024.6385939687. The cubic root of 25246993 is about 293.3615691082.

The spelling of 25246993 in words is "twenty-five million, two hundred forty-six thousand, nine hundred ninety-three".