25404033133 has 2 divisors, whose sum is σ = 25404033134. Its totient is φ = 25404033132.

The previous prime is 25404033097. The next prime is 25404033143. The reversal of 25404033133 is 33133040452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25389872964 + 14160169 = 159342^2 + 3763^2 .

It is a cyclic number.

It is not a de Polignac number, because 25404033133 - 2¹⁷ = 25403902061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25404033143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12702016566 + 12702016567.

It is an arithmetic number, because the mean of its divisors is an integer number (12702016567).

Almost surely, 2^25404033133 is an apocalyptic number.

It is an amenable number.

25404033133 is a deficient number, since it is larger than the sum of its proper divisors (1).

25404033133 is an equidigital number, since it uses as much as digits as its factorization.

25404033133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 25404033133 its reverse (33133040452), we get a palindrome (58537073585).

The spelling of 25404033133 in words is "twenty-five billion, four hundred four million, thirty-three thousand, one hundred thirty-three".