253453431245 has 12 divisors (see below), whose sum is σ = 353800300284. Its totient is φ = 173796638400.

The previous prime is 253453431229. The next prime is 253453431323. The reversal of 253453431245 is 542134354352.

It can be written as a sum of positive squares in 2 ways, for example, as 72996692041 + 180456739204 = 270179^2 + 424802^2 .

It is not a de Polignac number, because 253453431245 - 2⁴ = 253453431229 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 517251656 + ... + 517252145.

It is an arithmetic number, because the mean of its divisors is an integer number (29483358357).

Almost surely, 2^253453431245 is an apocalyptic number.

It is an amenable number.

253453431245 is a deficient number, since it is larger than the sum of its proper divisors (100346869039).

253453431245 is a wasteful number, since it uses less digits than its factorization.

253453431245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034503820 (or 1034503813 counting only the distinct ones).

The product of its digits is 864000, while the sum is 41.

Adding to 253453431245 its reverse (542134354352), we get a palindrome (795587785597).

The spelling of 253453431245 in words is "two hundred fifty-three billion, four hundred fifty-three million, four hundred thirty-one thousand, two hundred forty-five".