54542239 has 4 divisors (see below), whose sum is σ = 57750624. Its totient is φ = 51333856.

The previous prime is 54542233. The next prime is 54542249. The reversal of 54542239 is 93224545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54542239 - 2⁵ = 54542207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54542233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1604167 + ... + 1604200.

It is an arithmetic number, because the mean of its divisors is an integer number (14437656).

Almost surely, 2^54542239 is an apocalyptic number.

54542239 is a deficient number, since it is larger than the sum of its proper divisors (3208385).

54542239 is a wasteful number, since it uses less digits than its factorization.

54542239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208384.

The product of its digits is 43200, while the sum is 34.

The square root of 54542239 is about 7385.2717620951. The cubic root of 54542239 is about 379.2372488549.

The spelling of 54542239 in words is "fifty-four million, five hundred forty-two thousand, two hundred thirty-nine".