55822423 has 4 divisors (see below), whose sum is σ = 55838088. Its totient is φ = 55806760.

The previous prime is 55822411. The next prime is 55822451. The reversal of 55822423 is 32422855.

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 55822423 - 2²¹ = 53725271 is a prime.

It is a super-2 number, since 2×55822423² = 6232285819181858, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55822453) 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, 393 + ... + 10573.

It is an arithmetic number, because the mean of its divisors is an integer number (13959522).

Almost surely, 2^55822423 is an apocalyptic number.

55822423 is a deficient number, since it is larger than the sum of its proper divisors (15665).

55822423 is a wasteful number, since it uses less digits than its factorization.

55822423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15664.

The product of its digits is 19200, while the sum is 31.

The square root of 55822423 is about 7471.4404902937. The cubic root of 55822423 is about 382.1814124216.

The spelling of 55822423 in words is "fifty-five million, eight hundred twenty-two thousand, four hundred twenty-three".