253111571025 has 48 divisors (see below), whose sum is σ = 427556634624. Its totient is φ = 132066537280.

The previous prime is 253111570949. The next prime is 253111571057. The reversal of 253111571025 is 520175111352.

It is not a de Polignac number, because 253111571025 - 2⁷ = 253111570897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9458314 + ... + 9485036.

It is an arithmetic number, because the mean of its divisors is an integer number (8907429888).

Almost surely, 2^253111571025 is an apocalyptic number.

253111571025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253111571025 is a deficient number, since it is larger than the sum of its proper divisors (174445063599).

253111571025 is a wasteful number, since it uses less digits than its factorization.

253111571025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29470 (or 29465 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 33.

Adding to 253111571025 its reverse (520175111352), we get a palindrome (773286682377).

The spelling of 253111571025 in words is "two hundred fifty-three billion, one hundred eleven million, five hundred seventy-one thousand, twenty-five".