55321632123 has 32 divisors (see below), whose sum is σ = 76853145600. Its totient is φ = 35354592000.

The previous prime is 55321632109. The next prime is 55321632143. The reversal of 55321632123 is 32123612355.

It is not a de Polignac number, because 55321632123 - 2⁸ = 55321631867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55321632143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9452148 + ... + 9457998.

It is an arithmetic number, because the mean of its divisors is an integer number (2401660800).

Almost surely, 2^55321632123 is an apocalyptic number.

55321632123 is a deficient number, since it is larger than the sum of its proper divisors (21531513477).

55321632123 is a wasteful number, since it uses less digits than its factorization.

55321632123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643.

The product of its digits is 32400, while the sum is 33.

The spelling of 55321632123 in words is "fifty-five billion, three hundred twenty-one million, six hundred thirty-two thousand, one hundred twenty-three".