55250043 has 16 divisors (see below), whose sum is σ = 78422400. Its totient is φ = 34499520.

The previous prime is 55250011. The next prime is 55250047. The reversal of 55250043 is 34005255.

It is not a de Polignac number, because 55250043 - 2⁵ = 55250011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55249995 and 55250022.

It is not an unprimeable number, because it can be changed into a prime (55250047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373 + ... + 10518.

It is an arithmetic number, because the mean of its divisors is an integer number (4901400).

Almost surely, 2^55250043 is an apocalyptic number.

55250043 is a deficient number, since it is larger than the sum of its proper divisors (23172357).

55250043 is a wasteful number, since it uses less digits than its factorization.

55250043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 55250043 is about 7433.0372661517. The cubic root of 55250043 is about 380.8706789627.

Adding to 55250043 its reverse (34005255), we get a palindrome (89255298).

The spelling of 55250043 in words is "fifty-five million, two hundred fifty thousand, forty-three".