54205239 has 16 divisors (see below), whose sum is σ = 80769024. Its totient is φ = 32049600.

The previous prime is 54205199. The next prime is 54205243. The reversal of 54205239 is 93250245.

It is not a de Polignac number, because 54205239 - 2¹² = 54201143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54205939) 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, 18679 + ... + 21384.

It is an arithmetic number, because the mean of its divisors is an integer number (5048064).

Almost surely, 2^54205239 is an apocalyptic number.

54205239 is a deficient number, since it is larger than the sum of its proper divisors (26563785).

54205239 is a wasteful number, since it uses less digits than its factorization.

54205239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40118.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 54205239 is about 7362.4207296242. The cubic root of 54205239 is about 378.4545705669.

The spelling of 54205239 in words is "fifty-four million, two hundred five thousand, two hundred thirty-nine".