55535423 has 8 divisors (see below), whose sum is σ = 58546800. Its totient is φ = 52532928.

The previous prime is 55535371. The next prime is 55535503. The reversal of 55535423 is 32453555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55535423 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 55535423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55535023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13565 + ... + 17177.

It is an arithmetic number, because the mean of its divisors is an integer number (7318350).

Almost surely, 2^55535423 is an apocalyptic number.

55535423 is a deficient number, since it is larger than the sum of its proper divisors (3011377).

55535423 is a wasteful number, since it uses less digits than its factorization.

55535423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441.

The product of its digits is 45000, while the sum is 32.

The square root of 55535423 is about 7452.2092697401. The cubic root of 55535423 is about 381.5253165695.

Adding to 55535423 its reverse (32453555), we get a palindrome (87988978).

The spelling of 55535423 in words is "fifty-five million, five hundred thirty-five thousand, four hundred twenty-three".