54320647 has 4 divisors (see below), whose sum is σ = 54338536. Its totient is φ = 54302760.

The previous prime is 54320621. The next prime is 54320657. The reversal of 54320647 is 74602345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74602345 = 5 ⋅14920469.

It is a cyclic number.

It is not a de Polignac number, because 54320647 - 2¹¹ = 54318599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54320657) 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, 3129 + ... + 10882.

It is an arithmetic number, because the mean of its divisors is an integer number (13584634).

Almost surely, 2^54320647 is an apocalyptic number.

54320647 is a deficient number, since it is larger than the sum of its proper divisors (17889).

54320647 is a wasteful number, since it uses less digits than its factorization.

54320647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17888.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 54320647 is about 7370.2542018576. The cubic root of 54320647 is about 378.7229685131.

The spelling of 54320647 in words is "fifty-four million, three hundred twenty thousand, six hundred forty-seven".