253020442544 has 20 divisors (see below), whose sum is σ = 491959367496. Its totient is φ = 126063186432.

The previous prime is 253020442541. The next prime is 253020442579. The reversal of 253020442544 is 445244020352.

It is not an unprimeable number, because it can be changed into a prime (253020442541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27935009 + ... + 27944064.

Almost surely, 2^253020442544 is an apocalyptic number.

It is an amenable number.

253020442544 is a deficient number, since it is larger than the sum of its proper divisors (238938924952).

253020442544 is a wasteful number, since it uses less digits than its factorization.

253020442544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55879364 (or 55879358 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 35.

Adding to 253020442544 its reverse (445244020352), we get a palindrome (698264462896).

The spelling of 253020442544 in words is "two hundred fifty-three billion, twenty million, four hundred forty-two thousand, five hundred forty-four".