26245997 has 2 divisors, whose sum is σ = 26245998. Its totient is φ = 26245996.

The previous prime is 26245963. The next prime is 26246009. The reversal of 26245997 is 79954262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24344356 + 1901641 = 4934^2 + 1379^2 .

It is a cyclic number.

It is not a de Polignac number, because 26245997 - 2¹⁰ = 26244973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26245907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13122998 + 13122999.

It is an arithmetic number, because the mean of its divisors is an integer number (13122999).

Almost surely, 2^26245997 is an apocalyptic number.

It is an amenable number.

26245997 is a deficient number, since it is larger than the sum of its proper divisors (1).

26245997 is an equidigital number, since it uses as much as digits as its factorization.

26245997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 26245997 is about 5123.0847152863. The cubic root of 26245997 is about 297.1809898736.

The spelling of 26245997 in words is "twenty-six million, two hundred forty-five thousand, nine hundred ninety-seven".