20054542 has 16 divisors (see below), whose sum is σ = 30511872. Its totient is φ = 9885240.

The previous prime is 20054537. The next prime is 20054549. The reversal of 20054542 is 24545002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054549) 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, 73867 + ... + 74137.

It is an arithmetic number, because the mean of its divisors is an integer number (1906992).

Almost surely, 2^20054542 is an apocalyptic number.

20054542 is a deficient number, since it is larger than the sum of its proper divisors (10457330).

20054542 is a wasteful number, since it uses less digits than its factorization.

20054542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20054542 is about 4478.2297841893. The cubic root of 20054542 is about 271.6882873045.

Adding to 20054542 its reverse (24545002), we get a palindrome (44599544).

The spelling of 20054542 in words is "twenty million, fifty-four thousand, five hundred forty-two".