253220034445 has 48 divisors (see below), whose sum is σ = 369809141760. Its totient is φ = 165652118016.

The previous prime is 253220034421. The next prime is 253220034449. The reversal of 253220034445 is 544430022352.

It is not a de Polignac number, because 253220034445 - 2³⁷ = 115781080973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253220034445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253220034449) 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, 2099541 + ... + 2216869.

It is an arithmetic number, because the mean of its divisors is an integer number (7704357120).

Almost surely, 2^253220034445 is an apocalyptic number.

It is an amenable number.

253220034445 is a deficient number, since it is larger than the sum of its proper divisors (116589107315).

253220034445 is a wasteful number, since it uses less digits than its factorization.

253220034445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117754 (or 117747 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 253220034445 its reverse (544430022352), we get a palindrome (797650056797).

The spelling of 253220034445 in words is "two hundred fifty-three billion, two hundred twenty million, thirty-four thousand, four hundred forty-five".