25055505253 has 2 divisors, whose sum is σ = 25055505254. Its totient is φ = 25055505252.

The previous prime is 25055505221. The next prime is 25055505271. The reversal of 25055505253 is 35250555052.

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., 25045278049 + 10227204 = 158257^2 + 3198^2 .

It is a cyclic number.

It is not a de Polignac number, because 25055505253 - 2⁵ = 25055505221 is a prime.

It is a super-2 number, since 2×25055505253² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25055505053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12527752626 + 12527752627.

It is an arithmetic number, because the mean of its divisors is an integer number (12527752627).

Almost surely, 2^25055505253 is an apocalyptic number.

It is an amenable number.

25055505253 is a deficient number, since it is larger than the sum of its proper divisors (1).

25055505253 is an equidigital number, since it uses as much as digits as its factorization.

25055505253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 187500, while the sum is 37.

The spelling of 25055505253 in words is "twenty-five billion, fifty-five million, five hundred five thousand, two hundred fifty-three".