54356815 has 8 divisors (see below), whose sum is σ = 68661360. Its totient is φ = 41196672.

The previous prime is 54356807. The next prime is 54356821. The reversal of 54356815 is 51865345.

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 54356815 - 2³ = 54356807 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 285994 + ... + 286183.

It is an arithmetic number, because the mean of its divisors is an integer number (8582670).

Almost surely, 2^54356815 is an apocalyptic number.

54356815 is a deficient number, since it is larger than the sum of its proper divisors (14304545).

54356815 is a wasteful number, since it uses less digits than its factorization.

54356815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572201.

The product of its digits is 72000, while the sum is 37.

The square root of 54356815 is about 7372.7074402827. The cubic root of 54356815 is about 378.8070041676.

The spelling of 54356815 in words is "fifty-four million, three hundred fifty-six thousand, eight hundred fifteen".