25267573069 has 2 divisors, whose sum is σ = 25267573070. Its totient is φ = 25267573068.

The previous prime is 25267573043. The next prime is 25267573087. The reversal of 25267573069 is 96037576252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16444728169 + 8822844900 = 128237^2 + 93930^2 .

It is a cyclic number.

It is not a de Polignac number, because 25267573069 - 2¹⁵ = 25267540301 is a prime.

It is a super-2 number, since 2×25267573069² (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 (25267273069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12633786534 + 12633786535.

It is an arithmetic number, because the mean of its divisors is an integer number (12633786535).

Almost surely, 2^25267573069 is an apocalyptic number.

It is an amenable number.

25267573069 is a deficient number, since it is larger than the sum of its proper divisors (1).

25267573069 is an equidigital number, since it uses as much as digits as its factorization.

25267573069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4762800, while the sum is 52.

The spelling of 25267573069 in words is "twenty-five billion, two hundred sixty-seven million, five hundred seventy-three thousand, sixty-nine".