253410830645 has 54 divisors (see below), whose sum is σ = 366690061062. Its totient is φ = 167624161152.

The previous prime is 253410830591. The next prime is 253410830657. The reversal of 253410830645 is 546038014352.

It can be written as a sum of positive squares in 9 ways, for example, as 200691456196 + 52719374449 = 447986^2 + 229607^2 .

It is not a de Polignac number, because 253410830645 - 2⁶ = 253410830581 is a prime.

It is a super-2 number, since 2×253410830645² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 228503351 + ... + 228504459.

Almost surely, 2^253410830645 is an apocalyptic number.

It is an amenable number.

253410830645 is a deficient number, since it is larger than the sum of its proper divisors (113279230417).

253410830645 is an frugal number, since it uses more digits than its factorization.

253410830645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 253410830645 its reverse (546038014352), we get a palindrome (799448844997).

The spelling of 253410830645 in words is "two hundred fifty-three billion, four hundred ten million, eight hundred thirty thousand, six hundred forty-five".