55033897 has 16 divisors (see below), whose sum is σ = 58480128. Its totient is φ = 51719040.

The previous prime is 55033889. The next prime is 55033907. The reversal of 55033897 is 79833055.

It is a happy number.

It is not a de Polignac number, because 55033897 - 2³ = 55033889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55033807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187683 + ... + 187975.

It is an arithmetic number, because the mean of its divisors is an integer number (3655008).

Almost surely, 2^55033897 is an apocalyptic number.

It is an amenable number.

55033897 is a deficient number, since it is larger than the sum of its proper divisors (3446231).

55033897 is a wasteful number, since it uses less digits than its factorization.

55033897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 55033897 is about 7418.4834703597. The cubic root of 55033897 is about 380.3733565041.

The spelling of 55033897 in words is "fifty-five million, thirty-three thousand, eight hundred ninety-seven".