55497718 has 8 divisors (see below), whose sum is σ = 84419280. Its totient is φ = 27357960.

The previous prime is 55497713. The next prime is 55497749. The reversal of 55497718 is 81779455.

It is a happy number.

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 (55497713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195273 + ... + 195556.

It is an arithmetic number, because the mean of its divisors is an integer number (10552410).

Almost surely, 2^55497718 is an apocalyptic number.

55497718 is a deficient number, since it is larger than the sum of its proper divisors (28921562).

55497718 is a wasteful number, since it uses less digits than its factorization.

55497718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390902.

The product of its digits is 352800, while the sum is 46.

The square root of 55497718 is about 7449.6790534895. The cubic root of 55497718 is about 381.4389532593.

The spelling of 55497718 in words is "fifty-five million, four hundred ninety-seven thousand, seven hundred eighteen".