55421612324 has 24 divisors (see below), whose sum is σ = 104475379008. Its totient is φ = 25572604320.

The previous prime is 55421612321. The next prime is 55421612353. The reversal of 55421612324 is 42321612455.

It is a super-2 number, since 2×55421612324² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55421612321) 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 7 ways as a sum of consecutive naturals, for example, 68849 + ... + 339975.

It is an arithmetic number, because the mean of its divisors is an integer number (4353140792).

Almost surely, 2^55421612324 is an apocalyptic number.

It is an amenable number.

55421612324 is a deficient number, since it is larger than the sum of its proper divisors (49053766684).

55421612324 is a wasteful number, since it uses less digits than its factorization.

55421612324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275075 (or 275073 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The spelling of 55421612324 in words is "fifty-five billion, four hundred twenty-one million, six hundred twelve thousand, three hundred twenty-four".