55451893 has 8 divisors (see below), whose sum is σ = 64027712. Its totient is φ = 47039616.

The previous prime is 55451843. The next prime is 55451911. The reversal of 55451893 is 39815455.

55451893 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 a de Polignac number, because none of the positive numbers 2^k-55451893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55451843) 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, 40155 + ... + 41512.

It is an arithmetic number, because the mean of its divisors is an integer number (8003464).

Almost surely, 2^55451893 is an apocalyptic number.

It is an amenable number.

55451893 is a deficient number, since it is larger than the sum of its proper divisors (8575819).

55451893 is an equidigital number, since it uses as much as digits as its factorization.

55451893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81771.

The product of its digits is 108000, while the sum is 40.

The square root of 55451893 is about 7446.6027824774. The cubic root of 55451893 is about 381.3339384115. Note that the first 3 decimals are identical.

The spelling of 55451893 in words is "fifty-five million, four hundred fifty-one thousand, eight hundred ninety-three".