55523318 has 8 divisors (see below), whose sum is σ = 83721600. Its totient is φ = 27616120.

The previous prime is 55523317. The next prime is 55523323. The reversal of 55523318 is 81332555.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55523317) 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, 72293 + ... + 73056.

It is an arithmetic number, because the mean of its divisors is an integer number (10465200).

Almost surely, 2^55523318 is an apocalyptic number.

55523318 is a deficient number, since it is larger than the sum of its proper divisors (28198282).

55523318 is a wasteful number, since it uses less digits than its factorization.

55523318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145542.

The product of its digits is 18000, while the sum is 32.

The square root of 55523318 is about 7451.3970502182. The cubic root of 55523318 is about 381.4975943260.

The spelling of 55523318 in words is "fifty-five million, five hundred twenty-three thousand, three hundred eighteen".