55625423 has 4 divisors (see below), whose sum is σ = 63571920. Its totient is φ = 47678928.

The previous prime is 55625417. The next prime is 55625429. The reversal of 55625423 is 32452655.

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

It is an interprime number because it is at equal distance from previous prime (55625417) and next prime (55625429).

It is a cyclic number.

It is not a de Polignac number, because 55625423 - 2²⁴ = 38848207 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 55625423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55625429) 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, 3973238 + ... + 3973251.

It is an arithmetic number, because the mean of its divisors is an integer number (15892980).

Almost surely, 2^55625423 is an apocalyptic number.

55625423 is a deficient number, since it is larger than the sum of its proper divisors (7946497).

55625423 is an equidigital number, since it uses as much as digits as its factorization.

55625423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7946496.

The product of its digits is 36000, while the sum is 32.

The square root of 55625423 is about 7458.2453030187. The cubic root of 55625423 is about 381.7313036942.

The spelling of 55625423 in words is "fifty-five million, six hundred twenty-five thousand, four hundred twenty-three".