55900321 has 8 divisors (see below), whose sum is σ = 56981120. Its totient is φ = 54829008.

The previous prime is 55900307. The next prime is 55900333. The reversal of 55900321 is 12300955.

55900321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55900321 - 2¹¹ = 55898273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55900381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10150 + ... + 14656.

It is an arithmetic number, because the mean of its divisors is an integer number (7122640).

Almost surely, 2^55900321 is an apocalyptic number.

It is an amenable number.

55900321 is a deficient number, since it is larger than the sum of its proper divisors (1080799).

55900321 is a wasteful number, since it uses less digits than its factorization.

55900321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4743.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 55900321 is about 7476.6517238668. The cubic root of 55900321 is about 382.3591028468.

The spelling of 55900321 in words is "fifty-five million, nine hundred thousand, three hundred twenty-one".