25257466093 has 2 divisors, whose sum is σ = 25257466094. Its totient is φ = 25257466092.

The previous prime is 25257466067. The next prime is 25257466097. The reversal of 25257466093 is 39066475252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20231648644 + 5025817449 = 142238^2 + 70893^2 .

It is a cyclic number.

It is not a de Polignac number, because 25257466093 - 2³³ = 16667531501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25257466097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12628733046 + 12628733047.

It is an arithmetic number, because the mean of its divisors is an integer number (12628733047).

Almost surely, 2^25257466093 is an apocalyptic number.

It is an amenable number.

25257466093 is a deficient number, since it is larger than the sum of its proper divisors (1).

25257466093 is an equidigital number, since it uses as much as digits as its factorization.

25257466093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 25257466093 in words is "twenty-five billion, two hundred fifty-seven million, four hundred sixty-six thousand, ninety-three".