355542323245553 has 4 divisors (see below), whose sum is σ = 356043793377780. Its totient is φ = 355040853113328.

The previous prime is 355542323245547. The next prime is 355542323245567.

It is a happy number.

355542323245553 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34157572424704 + 321384750820849 = 5844448^2 + 17927207^2 .

It is a cyclic number.

It is not a de Polignac number, because 355542323245553 - 2⁸ = 355542323245297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355542323245583) 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, 250735065050 + ... + 250735066467.

It is an arithmetic number, because the mean of its divisors is an integer number (89010948344445).

Almost surely, 2^{355542323245553} is an apocalyptic number.

It is an amenable number.

355542323245553 is a deficient number, since it is larger than the sum of its proper divisors (501470132227).

355542323245553 is an equidigital number, since it uses as much as digits as its factorization.

355542323245553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501470132226.

The product of its digits is 162000000, while the sum is 56.

Subtracting from 355542323245553 its product of digits (162000000), we obtain a palindrome (355542161245553).

The spelling of 355542323245553 in words is "three hundred fifty-five trillion, five hundred forty-two billion, three hundred twenty-three million, two hundred forty-five thousand, five hundred fifty-three".