54739447 has 4 divisors (see below), whose sum is σ = 62559376. Its totient is φ = 46919520.

The previous prime is 54739423. The next prime is 54739493. The reversal of 54739447 is 74493745.

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 54739447 - 2⁷ = 54739319 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 (54739147) 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, 3909954 + ... + 3909967.

It is an arithmetic number, because the mean of its divisors is an integer number (15639844).

Almost surely, 2^54739447 is an apocalyptic number.

54739447 is a deficient number, since it is larger than the sum of its proper divisors (7819929).

54739447 is an equidigital number, since it uses as much as digits as its factorization.

54739447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7819928.

The product of its digits is 423360, while the sum is 43.

The square root of 54739447 is about 7398.6111534531. The cubic root of 54739447 is about 379.6937675934.

The spelling of 54739447 in words is "fifty-four million, seven hundred thirty-nine thousand, four hundred forty-seven".