253145343020 has 24 divisors (see below), whose sum is σ = 531691264944. Its totient is φ = 101241747776.

The previous prime is 253145343001. The next prime is 253145343023. The reversal of 253145343020 is 20343541352.

It is not an unprimeable number, because it can be changed into a prime (253145343023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 897302 + ... + 1145181.

It is an arithmetic number, because the mean of its divisors is an integer number (22153802706).

Almost surely, 2^253145343020 is an apocalyptic number.

253145343020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253145343020 is an abundant number, since it is smaller than the sum of its proper divisors (278545921924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253145343020 is a wasteful number, since it uses less digits than its factorization.

253145343020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048689 (or 2048687 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 253145343020 its reverse (20343541352), we get a palindrome (273488884372).

The spelling of 253145343020 in words is "two hundred fifty-three billion, one hundred forty-five million, three hundred forty-three thousand, twenty".