305343431055 has 64 divisors (see below), whose sum is σ = 592823024640. Its totient is φ = 148205635200.

The previous prime is 305343431047. The next prime is 305343431143. The reversal of 305343431055 is 550134343503.

305343431055 is a `hidden beast` number, since 30 + 534 + 3 + 43 + 1 + 0 + 55 = 666.

It is not a de Polignac number, because 305343431055 - 2³ = 305343431047 is a prime.

It is a super-2 number, since 2×305343431055² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1100641 + ... + 1349850.

It is an arithmetic number, because the mean of its divisors is an integer number (9262859760).

Almost surely, 2^305343431055 is an apocalyptic number.

305343431055 is a deficient number, since it is larger than the sum of its proper divisors (287479593585).

305343431055 is a wasteful number, since it uses less digits than its factorization.

305343431055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450589 (or 2450583 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

Adding to 305343431055 its reverse (550134343503), we get a palindrome (855477774558).

The spelling of 305343431055 in words is "three hundred five billion, three hundred forty-three million, four hundred thirty-one thousand, fifty-five".