253525403069 has 2 divisors, whose sum is σ = 253525403070. Its totient is φ = 253525403068.

The previous prime is 253525402993. The next prime is 253525403081. The reversal of 253525403069 is 960304525352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253421628100 + 103774969 = 503410^2 + 10187^2 .

It is a cyclic number.

It is not a de Polignac number, because 253525403069 - 2²⁰ = 253524354493 is a prime.

It is a super-2 number, since 2×253525403069² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253525403569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126762701534 + 126762701535.

It is an arithmetic number, because the mean of its divisors is an integer number (126762701535).

Almost surely, 2^253525403069 is an apocalyptic number.

It is an amenable number.

253525403069 is a deficient number, since it is larger than the sum of its proper divisors (1).

253525403069 is an equidigital number, since it uses as much as digits as its factorization.

253525403069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 253525403069 in words is "two hundred fifty-three billion, five hundred twenty-five million, four hundred three thousand, sixty-nine".