54243505 has 8 divisors (see below), whose sum is σ = 65245824. Its totient is φ = 43292400.

The previous prime is 54243493. The next prime is 54243529. The reversal of 54243505 is 50534245.

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

It is not a de Polignac number, because 54243505 - 2⁵ = 54243473 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, 10431 + ... + 14740.

It is an arithmetic number, because the mean of its divisors is an integer number (8155728).

Almost surely, 2^54243505 is an apocalyptic number.

It is an amenable number.

54243505 is a deficient number, since it is larger than the sum of its proper divisors (11002319).

54243505 is a wasteful number, since it uses less digits than its factorization.

54243505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25607.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 54243505 is about 7365.0190088010. The cubic root of 54243505 is about 378.5436058482.

The spelling of 54243505 in words is "fifty-four million, two hundred forty-three thousand, five hundred five".