54487647 has 28 divisors (see below), whose sum is σ = 83732544. Its totient is φ = 35419680.

The previous prime is 54487637. The next prime is 54487663. The reversal of 54487647 is 74678445.

It is not a de Polignac number, because 54487647 - 2¹² = 54483551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54487627) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 28978 + ... + 30800.

It is an arithmetic number, because the mean of its divisors is an integer number (2990448).

Almost surely, 2^54487647 is an apocalyptic number.

54487647 is a deficient number, since it is larger than the sum of its proper divisors (29244897).

54487647 is an equidigital number, since it uses as much as digits as its factorization.

54487647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882 (or 1867 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 54487647 is about 7381.5748319718. The cubic root of 54487647 is about 379.1106788698.

The spelling of 54487647 in words is "fifty-four million, four hundred eighty-seven thousand, six hundred forty-seven".