54273639 has 16 divisors (see below), whose sum is σ = 87568128. Its totient is φ = 29188992.

The previous prime is 54273623. The next prime is 54273641. The reversal of 54273639 is 93637245.

It is not a de Polignac number, because 54273639 - 2⁴ = 54273623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54273597 and 54273606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54273619) 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, 75657 + ... + 76370.

It is an arithmetic number, because the mean of its divisors is an integer number (5473008).

Almost surely, 2^54273639 is an apocalyptic number.

54273639 is a deficient number, since it is larger than the sum of its proper divisors (33294489).

54273639 is a wasteful number, since it uses less digits than its factorization.

54273639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152054.

The product of its digits is 136080, while the sum is 39.

The square root of 54273639 is about 7367.0644764384. The cubic root of 54273639 is about 378.6136905607.

The spelling of 54273639 in words is "fifty-four million, two hundred seventy-three thousand, six hundred thirty-nine".