253241340345 has 48 divisors (see below), whose sum is σ = 517841605632. Its totient is φ = 112033031040.

The previous prime is 253241340329. The next prime is 253241340347. The reversal of 253241340345 is 543043142352.

253241340345 is a `hidden beast` number, since 2 + 5 + 3 + 241 + 3 + 403 + 4 + 5 = 666.

It is not a de Polignac number, because 253241340345 - 2⁴ = 253241340329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253241340347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12957022 + ... + 12976551.

It is an arithmetic number, because the mean of its divisors is an integer number (10788366784).

Almost surely, 2^253241340345 is an apocalyptic number.

It is an amenable number.

253241340345 is an abundant number, since it is smaller than the sum of its proper divisors (264600265287).

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

253241340345 is a wasteful number, since it uses less digits than its factorization.

253241340345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25933622 (or 25933619 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 253241340345 its reverse (543043142352), we get a palindrome (796284482697).

The spelling of 253241340345 in words is "two hundred fifty-three billion, two hundred forty-one million, three hundred forty thousand, three hundred forty-five".