55312421355 has 48 divisors (see below), whose sum is σ = 100207688256. Its totient is φ = 28170996480.

The previous prime is 55312421321. The next prime is 55312421357.

55312421355 is a `hidden beast` number, since 553 + 1 + 2 + 42 + 13 + 55 = 666.

55312421355 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55312421355 - 2⁶ = 55312421291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55312421357) 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 47 ways as a sum of consecutive naturals, for example, 590865 + ... + 678045.

It is an arithmetic number, because the mean of its divisors is an integer number (2087660172).

Almost surely, 2^55312421355 is an apocalyptic number.

55312421355 is a deficient number, since it is larger than the sum of its proper divisors (44895266901).

55312421355 is a wasteful number, since it uses less digits than its factorization.

55312421355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87828 (or 87825 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 55312421355 in words is "fifty-five billion, three hundred twelve million, four hundred twenty-one thousand, three hundred fifty-five".