253450235431544 has 32 divisors (see below), whose sum is σ = 475268088252000. Its totient is φ = 126712079395200.

The previous prime is 253450235431541. The next prime is 253450235431577. The reversal of 253450235431544 is 445134532054352.

It is a super-2 number, since 2×253450235431544² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253450235431492 and 253450235431501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253450235431541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4590879989 + ... + 4590935195.

It is an arithmetic number, because the mean of its divisors is an integer number (14852127757875).

Almost surely, 2^{253450235431544} is an apocalyptic number.

It is an amenable number.

253450235431544 is a deficient number, since it is larger than the sum of its proper divisors (221817852820456).

253450235431544 is a wasteful number, since it uses less digits than its factorization.

253450235431544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103863 (or 103859 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 50.

Adding to 253450235431544 its reverse (445134532054352), we get a palindrome (698584767485896).

The spelling of 253450235431544 in words is "two hundred fifty-three trillion, four hundred fifty billion, two hundred thirty-five million, four hundred thirty-one thousand, five hundred forty-four".