55422023 has 4 divisors (see below), whose sum is σ = 58682160. Its totient is φ = 52161888.

The previous prime is 55422011. The next prime is 55422043. The reversal of 55422023 is 32022455.

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 55422023 - 2⁴ = 55422007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55422023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55422043) 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, 1630043 + ... + 1630076.

It is an arithmetic number, because the mean of its divisors is an integer number (14670540).

Almost surely, 2^55422023 is an apocalyptic number.

55422023 is a deficient number, since it is larger than the sum of its proper divisors (3260137).

55422023 is a wasteful number, since it uses less digits than its factorization.

55422023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260136.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 55422023 is about 7444.5968997656. The cubic root of 55422023 is about 381.2654556845.

Adding to 55422023 its reverse (32022455), we get a palindrome (87444478).

The spelling of 55422023 in words is "fifty-five million, four hundred twenty-two thousand, twenty-three".