55451833 has 8 divisors (see below), whose sum is σ = 56609928. Its totient is φ = 54297984.

The previous prime is 55451819. The next prime is 55451843. The reversal of 55451833 is 33815455.

It can be written as a sum of positive squares in 4 ways, for example, as 23155344 + 32296489 = 4812^2 + 5683^2 .

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 55451833 - 2²¹ = 53354681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55451843) 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, 45885 + ... + 47077.

It is an arithmetic number, because the mean of its divisors is an integer number (7076241).

Almost surely, 2^55451833 is an apocalyptic number.

55451833 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

55451833 is a deficient number, since it is larger than the sum of its proper divisors (1158095).

55451833 is a wasteful number, since it uses less digits than its factorization.

55451833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123.

The product of its digits is 36000, while the sum is 34.

The square root of 55451833 is about 7446.5987537936. The cubic root of 55451833 is about 381.3338008746. Note that the first 3 decimals are identical.

The spelling of 55451833 in words is "fifty-five million, four hundred fifty-one thousand, eight hundred thirty-three".