55423454 has 4 divisors (see below), whose sum is σ = 83135184. Its totient is φ = 27711726.

The previous prime is 55423453. The next prime is 55423469. The reversal of 55423454 is 45432455.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55423454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55423453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13855862 + ... + 13855865.

It is an arithmetic number, because the mean of its divisors is an integer number (20783796).

Almost surely, 2^55423454 is an apocalyptic number.

55423454 is a deficient number, since it is larger than the sum of its proper divisors (27711730).

55423454 is a wasteful number, since it uses less digits than its factorization.

55423454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27711729.

The product of its digits is 48000, while the sum is 32.

The square root of 55423454 is about 7444.6930091173. The cubic root of 55423454 is about 381.2687370886.

Subtracting from 55423454 its reverse (45432455), we obtain a palindrome (9990999).

The spelling of 55423454 in words is "fifty-five million, four hundred twenty-three thousand, four hundred fifty-four".