55235342643 has 24 divisors (see below), whose sum is σ = 83945350080. Its totient is φ = 32201975520.

The previous prime is 55235342629. The next prime is 55235342677. The reversal of 55235342643 is 34624353255.

It is not a de Polignac number, because 55235342643 - 2⁴ = 55235342627 is a prime.

It is a super-2 number, since 2×55235342643² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55235342595 and 55235342604.

It is not an unprimeable number, because it can be changed into a prime (55235342693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2857353 + ... + 2876618.

It is an arithmetic number, because the mean of its divisors is an integer number (3497722920).

Almost surely, 2^55235342643 is an apocalyptic number.

55235342643 is a deficient number, since it is larger than the sum of its proper divisors (28710007437).

55235342643 is a wasteful number, since it uses less digits than its factorization.

55235342643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5734019 (or 5734006 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 42.

Adding to 55235342643 its reverse (34624353255), we get a palindrome (89859695898).

The spelling of 55235342643 in words is "fifty-five billion, two hundred thirty-five million, three hundred forty-two thousand, six hundred forty-three".