54140412 has 24 divisors (see below), whose sum is σ = 126604800. Its totient is φ = 18007216.

The previous prime is 54140407. The next prime is 54140473. The reversal of 54140412 is 21404145.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039 + ... + 10457.

It is an arithmetic number, because the mean of its divisors is an integer number (5275200).

Almost surely, 2^54140412 is an apocalyptic number.

It is an amenable number.

54140412 is an abundant number, since it is smaller than the sum of its proper divisors (72464388).

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

54140412 is a wasteful number, since it uses less digits than its factorization.

54140412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9905 (or 9903 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 54140412 is about 7358.0168523862. The cubic root of 54140412 is about 378.3036388984.

Adding to 54140412 its reverse (21404145), we get a palindrome (75544557).

The spelling of 54140412 in words is "fifty-four million, one hundred forty thousand, four hundred twelve".