254542245453 has 18 divisors (see below), whose sum is σ = 388041784494. Its totient is φ = 160763521392.

The previous prime is 254542245421. The next prime is 254542245493. The reversal of 254542245453 is 354542245452.

254542245453 is a `hidden beast` number, since 2 + 5 + 4 + 542 + 2 + 4 + 54 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 238399780644 + 16142464809 = 488262^2 + 127053^2 .

It is not a de Polignac number, because 254542245453 - 2⁵ = 254542245421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 254542245399 and 254542245408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254542245493) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39169150 + ... + 39175647.

Almost surely, 2^254542245453 is an apocalyptic number.

It is an amenable number.

254542245453 is a deficient number, since it is larger than the sum of its proper divisors (133499539041).

254542245453 is a wasteful number, since it uses less digits than its factorization.

254542245453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78344841 (or 78344819 counting only the distinct ones).

The product of its digits is 3840000, while the sum is 45.

Subtracting 254542245453 from its reverse (354542245452), we obtain a palindrome (99999999999).

The spelling of 254542245453 in words is "two hundred fifty-four billion, five hundred forty-two million, two hundred forty-five thousand, four hundred fifty-three".