54012539 has 8 divisors (see below), whose sum is σ = 63234528. Its totient is φ = 45167040.

The previous prime is 54012493. The next prime is 54012547. The reversal of 54012539 is 93521045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54012539 - 2¹² = 54008443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54012559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93812 + ... + 94385.

It is an arithmetic number, because the mean of its divisors is an integer number (7904316).

Almost surely, 2^54012539 is an apocalyptic number.

54012539 is a deficient number, since it is larger than the sum of its proper divisors (9221989).

54012539 is a wasteful number, since it uses less digits than its factorization.

54012539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188245.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 54012539 is about 7349.3223497136. The cubic root of 54012539 is about 378.0055685377.

The spelling of 54012539 in words is "fifty-four million, twelve thousand, five hundred thirty-nine".