253075833945 has 64 divisors (see below), whose sum is σ = 494560788480. Its totient is φ = 121766673600.

The previous prime is 253075833931. The next prime is 253075833947. The reversal of 253075833945 is 549338570352.

253075833945 is a `hidden beast` number, since 2 + 53 + 0 + 7 + 583 + 3 + 9 + 4 + 5 = 666.

It is not a de Polignac number, because 253075833945 - 2²¹ = 253073736793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253075833891 and 253075833900.

It is not an unprimeable number, because it can be changed into a prime (253075833947) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 455929 + ... + 844998.

It is an arithmetic number, because the mean of its divisors is an integer number (7727512320).

Almost surely, 2^253075833945 is an apocalyptic number.

It is an amenable number.

253075833945 is a deficient number, since it is larger than the sum of its proper divisors (241484954535).

253075833945 is a wasteful number, since it uses less digits than its factorization.

253075833945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301083 (or 1301077 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 54.

The spelling of 253075833945 in words is "two hundred fifty-three billion, seventy-five million, eight hundred thirty-three thousand, nine hundred forty-five".