253543265775 has 84 divisors (see below), whose sum is σ = 486581565120. Its totient is φ = 130860748800.

The previous prime is 253543265741. The next prime is 253543265777. The reversal of 253543265775 is 577562345352.

253543265775 is a `hidden beast` number, since 2 + 5 + 3 + 5 + 43 + 26 + 577 + 5 = 666.

It is not a de Polignac number, because 253543265775 - 2²⁶ = 253476156911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253543265777) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 340591 + ... + 789359.

It is an arithmetic number, because the mean of its divisors is an integer number (5792637680).

Almost surely, 2^253543265775 is an apocalyptic number.

253543265775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

253543265775 is a deficient number, since it is larger than the sum of its proper divisors (233038299345).

253543265775 is an equidigital number, since it uses as much as digits as its factorization.

253543265775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448828 (or 448808 counting only the distinct ones).

The product of its digits is 26460000, while the sum is 54.

The spelling of 253543265775 in words is "two hundred fifty-three billion, five hundred forty-three million, two hundred sixty-five thousand, seven hundred seventy-five".