54378247 has 48 divisors (see below), whose sum is σ = 74905600. Its totient is φ = 38491200.

The previous prime is 54378241. The next prime is 54378251. The reversal of 54378247 is 74287345.

It is not a de Polignac number, because 54378247 - 2¹⁵ = 54345479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54378241) 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 47 ways as a sum of consecutive naturals, for example, 498829 + ... + 498937.

Almost surely, 2^54378247 is an apocalyptic number.

54378247 is a deficient number, since it is larger than the sum of its proper divisors (20527353).

54378247 is a wasteful number, since it uses less digits than its factorization.

54378247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 177 counting only the distinct ones).

The product of its digits is 188160, while the sum is 40.

The square root of 54378247 is about 7374.1607658092. The cubic root of 54378247 is about 378.8567834206.

The spelling of 54378247 in words is "fifty-four million, three hundred seventy-eight thousand, two hundred forty-seven".