54239767 has 4 divisors (see below), whose sum is σ = 54363760. Its totient is φ = 54115776.

The previous prime is 54239749. The next prime is 54239771. The reversal of 54239767 is 76793245.

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 54239767 - 2¹¹ = 54237719 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 (54239567) 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, 61338 + ... + 62215.

It is an arithmetic number, because the mean of its divisors is an integer number (13590940).

Almost surely, 2^54239767 is an apocalyptic number.

54239767 is a deficient number, since it is larger than the sum of its proper divisors (123993).

54239767 is a wasteful number, since it uses less digits than its factorization.

54239767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123992.

The product of its digits is 317520, while the sum is 43.

The square root of 54239767 is about 7364.7652372632. The cubic root of 54239767 is about 378.5349103156.

The spelling of 54239767 in words is "fifty-four million, two hundred thirty-nine thousand, seven hundred sixty-seven".