25395674933 has 2 divisors, whose sum is σ = 25395674934. Its totient is φ = 25395674932.

The previous prime is 25395674897. The next prime is 25395675037. The reversal of 25395674933 is 33947659352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23194376209 + 2201298724 = 152297^2 + 46918^2 .

It is a cyclic number.

It is not a de Polignac number, because 25395674933 - 2⁶ = 25395674869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25395674533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12697837466 + 12697837467.

It is an arithmetic number, because the mean of its divisors is an integer number (12697837467).

Almost surely, 2^25395674933 is an apocalyptic number.

It is an amenable number.

25395674933 is a deficient number, since it is larger than the sum of its proper divisors (1).

25395674933 is an equidigital number, since it uses as much as digits as its factorization.

25395674933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18370800, while the sum is 56.

The spelling of 25395674933 in words is "twenty-five billion, three hundred ninety-five million, six hundred seventy-four thousand, nine hundred thirty-three".