55363282921 has 8 divisors (see below), whose sum is σ = 55695720960. Its totient is φ = 55031364528.

The previous prime is 55363282859. The next prime is 55363282937. The reversal of 55363282921 is 12928236355.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55363282921 - 2⁹ = 55363282409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55363282321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84870 + ... + 343408.

It is an arithmetic number, because the mean of its divisors is an integer number (6961965120).

Almost surely, 2^55363282921 is an apocalyptic number.

It is an amenable number.

55363282921 is a deficient number, since it is larger than the sum of its proper divisors (332438039).

55363282921 is a wasteful number, since it uses less digits than its factorization.

55363282921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259823.

The product of its digits is 777600, while the sum is 46.

The spelling of 55363282921 in words is "fifty-five billion, three hundred sixty-three million, two hundred eighty-two thousand, nine hundred twenty-one".