55250823 has 4 divisors (see below), whose sum is σ = 73667768. Its totient is φ = 36833880.

The previous prime is 55250809. The next prime is 55250827. The reversal of 55250823 is 32805255.

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

It is not a de Polignac number, because 55250823 - 2⁵ = 55250791 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 (55250827) 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, 9208468 + ... + 9208473.

It is an arithmetic number, because the mean of its divisors is an integer number (18416942).

Almost surely, 2^55250823 is an apocalyptic number.

55250823 is a deficient number, since it is larger than the sum of its proper divisors (18416945).

55250823 is a wasteful number, since it uses less digits than its factorization.

55250823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18416944.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55250823 is about 7433.0897344240. The cubic root of 55250823 is about 380.8724712855.

The spelling of 55250823 in words is "fifty-five million, two hundred fifty thousand, eight hundred twenty-three".