54236140 has 36 divisors (see below), whose sum is σ = 132493536. Its totient is φ = 18594912.

The previous prime is 54236113. The next prime is 54236141. The reversal of 54236140 is 4163245.

It is not an unprimeable number, because it can be changed into a prime (54236141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26692 + ... + 28651.

It is an arithmetic number, because the mean of its divisors is an integer number (3680376).

Almost surely, 2^54236140 is an apocalyptic number.

It is an amenable number.

54236140 is an abundant number, since it is smaller than the sum of its proper divisors (78257396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54236140 is a wasteful number, since it uses less digits than its factorization.

54236140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55366 (or 55357 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 54236140 is about 7364.5189931183. The cubic root of 54236140 is about 378.5264726151.

Adding to 54236140 its reverse (4163245), we get a palindrome (58399385).

The spelling of 54236140 in words is "fifty-four million, two hundred thirty-six thousand, one hundred forty".