54012542 has 4 divisors (see below), whose sum is σ = 81018816. Its totient is φ = 27006270.

The previous prime is 54012493. The next prime is 54012547. The reversal of 54012542 is 24521045.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54012547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13503134 + ... + 13503137.

It is an arithmetic number, because the mean of its divisors is an integer number (20254704).

Almost surely, 2^54012542 is an apocalyptic number.

54012542 is a deficient number, since it is larger than the sum of its proper divisors (27006274).

54012542 is a wasteful number, since it uses less digits than its factorization.

54012542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27006273.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 54012542 is about 7349.3225538141. The cubic root of 54012542 is about 378.0055755362.

Adding to 54012542 its reverse (24521045), we get a palindrome (78533587).

The spelling of 54012542 in words is "fifty-four million, twelve thousand, five hundred forty-two".