55045859 has 6 divisors (see below), whose sum is σ = 60076884. Its totient is φ = 50019320.

The previous prime is 55045817. The next prime is 55045867. The reversal of 55045859 is 95854055.

It is a de Polignac number, because none of the positive numbers 2^k-55045859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55045259) 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 5 ways as a sum of consecutive naturals, for example, 23489 + ... + 25725.

It is an arithmetic number, because the mean of its divisors is an integer number (10012814).

Almost surely, 2^55045859 is an apocalyptic number.

55045859 is a deficient number, since it is larger than the sum of its proper divisors (5031025).

55045859 is an frugal number, since it uses more digits than its factorization.

55045859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4485 (or 2248 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 41.

The square root of 55045859 is about 7419.2896560250. The cubic root of 55045859 is about 380.4009134385.

The spelling of 55045859 in words is "fifty-five million, forty-five thousand, eight hundred fifty-nine".