54380247 has 16 divisors (see below), whose sum is σ = 73413120. Its totient is φ = 35803872.

The previous prime is 54380213. The next prime is 54380273. The reversal of 54380247 is 74208345.

It is a de Polignac number, because none of the positive numbers 2^k-54380247 is a prime.

It is a super-2 number, since 2×54380247² = 5914422527562018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54384247) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 123654 + ... + 124092.

It is an arithmetic number, because the mean of its divisors is an integer number (4588320).

Almost surely, 2^54380247 is an apocalyptic number.

54380247 is a deficient number, since it is larger than the sum of its proper divisors (19032873).

54380247 is a wasteful number, since it uses less digits than its factorization.

54380247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 54380247 is about 7374.2963732142. The cubic root of 54380247 is about 378.8614280737.

The spelling of 54380247 in words is "fifty-four million, three hundred eighty thousand, two hundred forty-seven".