54420999 has 4 divisors (see below), whose sum is σ = 72561336. Its totient is φ = 36280664.

The previous prime is 54420991. The next prime is 54421001. The reversal of 54420999 is 99902445.

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

It is a cyclic number.

It is not a de Polignac number, because 54420999 - 2³ = 54420991 is a prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 54420999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54420991) 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, 9070164 + ... + 9070169.

It is an arithmetic number, because the mean of its divisors is an integer number (18140334).

Almost surely, 2^54420999 is an apocalyptic number.

54420999 is a deficient number, since it is larger than the sum of its proper divisors (18140337).

54420999 is a wasteful number, since it uses less digits than its factorization.

54420999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18140336.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 54420999 is about 7377.0589668241. The cubic root of 54420999 is about 378.9560427341.

The spelling of 54420999 in words is "fifty-four million, four hundred twenty thousand, nine hundred ninety-nine".