55250711 has 4 divisors (see below), whose sum is σ = 57033024. Its totient is φ = 53468400.

The previous prime is 55250681. The next prime is 55250729. The reversal of 55250711 is 11705255.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55250711 - 2¹⁸ = 54988567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891110 + ... + 891171.

It is an arithmetic number, because the mean of its divisors is an integer number (14258256).

Almost surely, 2^55250711 is an apocalyptic number.

55250711 is a deficient number, since it is larger than the sum of its proper divisors (1782313).

55250711 is a wasteful number, since it uses less digits than its factorization.

55250711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782312.

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 55250711 is about 7433.0822005410. The cubic root of 55250711 is about 380.8722139273.

Adding to 55250711 its reverse (11705255), we get a palindrome (66955966).

The spelling of 55250711 in words is "fifty-five million, two hundred fifty thousand, seven hundred eleven".