54287399 has 16 divisors (see below), whose sum is σ = 57364800. Its totient is φ = 51321600.

The previous prime is 54287393. The next prime is 54287407. The reversal of 54287399 is 99378245.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54287399 - 2⁸ = 54287143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54287393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272702 + ... + 272900.

It is an arithmetic number, because the mean of its divisors is an integer number (3585300).

Almost surely, 2^54287399 is an apocalyptic number.

54287399 is a deficient number, since it is larger than the sum of its proper divisors (3077401).

54287399 is a wasteful number, since it uses less digits than its factorization.

54287399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its digits is 544320, while the sum is 47.

The square root of 54287399 is about 7367.9983034743. The cubic root of 54287399 is about 378.6456845100.

The spelling of 54287399 in words is "fifty-four million, two hundred eighty-seven thousand, three hundred ninety-nine".