54400540 has 24 divisors (see below), whose sum is σ = 114674112. Its totient is φ = 21677760.

The previous prime is 54400517. The next prime is 54400559. The reversal of 54400540 is 4500445.

54400540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402 + ... + 10438.

It is an arithmetic number, because the mean of its divisors is an integer number (4778088).

Almost surely, 2^54400540 is an apocalyptic number.

It is an amenable number.

54400540 is an abundant number, since it is smaller than the sum of its proper divisors (60273572).

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

54400540 is a wasteful number, since it uses less digits than its factorization.

54400540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10317 (or 10315 counting only the distinct ones).

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

The square root of 54400540 is about 7375.6721727582. The cubic root of 54400540 is about 378.9085486076.

Adding to 54400540 its reverse (4500445), we get a palindrome (58900985).

The spelling of 54400540 in words is "fifty-four million, four hundred thousand, five hundred forty".