54239873 has 2 divisors, whose sum is σ = 54239874. Its totient is φ = 54239872.

The previous prime is 54239869. The next prime is 54239881. The reversal of 54239873 is 37893245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41113744 + 13126129 = 6412^2 + 3623^2 .

It is a cyclic number.

It is not a de Polignac number, because 54239873 - 2² = 54239869 is a prime.

It is a super-2 number, since 2×54239873² = 5883927646112258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54239873.

It is not a weakly prime, because it can be changed into another prime (54239173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27119936 + 27119937.

It is an arithmetic number, because the mean of its divisors is an integer number (27119937).

Almost surely, 2^54239873 is an apocalyptic number.

It is an amenable number.

54239873 is a deficient number, since it is larger than the sum of its proper divisors (1).

54239873 is an equidigital number, since it uses as much as digits as its factorization.

54239873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 54239873 is about 7364.7724336873. The cubic root of 54239873 is about 378.5351569039.

The spelling of 54239873 in words is "fifty-four million, two hundred thirty-nine thousand, eight hundred seventy-three".