55383745 has 4 divisors (see below), whose sum is σ = 66460500. Its totient is φ = 44306992.

The previous prime is 55383733. The next prime is 55383751. The reversal of 55383745 is 54738355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32353344 + 23030401 = 5688^2 + 4799^2 .

It is a cyclic number.

It is not a de Polignac number, because 55383745 - 2⁷ = 55383617 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 55383698 and 55383707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5538370 + ... + 5538379.

It is an arithmetic number, because the mean of its divisors is an integer number (16615125).

Almost surely, 2^55383745 is an apocalyptic number.

It is an amenable number.

55383745 is a deficient number, since it is larger than the sum of its proper divisors (11076755).

55383745 is a wasteful number, since it uses less digits than its factorization.

55383745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11076754.

The product of its digits is 252000, while the sum is 40.

The square root of 55383745 is about 7442.0255979135. The cubic root of 55383745 is about 381.1776600184.

The spelling of 55383745 in words is "fifty-five million, three hundred eighty-three thousand, seven hundred forty-five".