25265027533 has 2 divisors, whose sum is σ = 25265027534. Its totient is φ = 25265027532.

The previous prime is 25265027509. The next prime is 25265027539. The reversal of 25265027533 is 33572056252.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18999038569 + 6265988964 = 137837^2 + 79158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25265027533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25265027539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12632513766 + 12632513767.

It is an arithmetic number, because the mean of its divisors is an integer number (12632513767).

Almost surely, 2^25265027533 is an apocalyptic number.

It is an amenable number.

25265027533 is a deficient number, since it is larger than the sum of its proper divisors (1).

25265027533 is an equidigital number, since it uses as much as digits as its factorization.

25265027533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 40.

The spelling of 25265027533 in words is "twenty-five billion, two hundred sixty-five million, twenty-seven thousand, five hundred thirty-three".