54817555 has 8 divisors (see below), whose sum is σ = 70841232. Its totient is φ = 40480608.

The previous prime is 54817531. The next prime is 54817601. The reversal of 54817555 is 55571845.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 54817555 - 2¹¹ = 54815507 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421609 + ... + 421738.

It is an arithmetic number, because the mean of its divisors is an integer number (8855154).

Almost surely, 2^54817555 is an apocalyptic number.

54817555 is a deficient number, since it is larger than the sum of its proper divisors (16023677).

54817555 is a wasteful number, since it uses less digits than its factorization.

54817555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843365.

The product of its digits is 140000, while the sum is 40.

The square root of 54817555 is about 7403.8878300525. The cubic root of 54817555 is about 379.8742774307.

The spelling of 54817555 in words is "fifty-four million, eight hundred seventeen thousand, five hundred fifty-five".