25337097497 has 2 divisors, whose sum is σ = 25337097498. Its totient is φ = 25337097496.

The previous prime is 25337097491. The next prime is 25337097509. The reversal of 25337097497 is 79479073352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14723152921 + 10613944576 = 121339^2 + 103024^2 .

It is a cyclic number.

It is not a de Polignac number, because 25337097497 - 2⁴ = 25337097481 is a prime.

It is not a weakly prime, because it can be changed into another prime (25337097491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12668548748 + 12668548749.

It is an arithmetic number, because the mean of its divisors is an integer number (12668548749).

Almost surely, 2^25337097497 is an apocalyptic number.

It is an amenable number.

25337097497 is a deficient number, since it is larger than the sum of its proper divisors (1).

25337097497 is an equidigital number, since it uses as much as digits as its factorization.

25337097497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10001880, while the sum is 56.

The spelling of 25337097497 in words is "twenty-five billion, three hundred thirty-seven million, ninety-seven thousand, four hundred ninety-seven".