54354640 has 20 divisors (see below), whose sum is σ = 126374724. Its totient is φ = 21741824.

The previous prime is 54354637. The next prime is 54354667. The reversal of 54354640 is 4645345.

54354640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33779344 + 20575296 = 5812^2 + 4536^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 339637 + ... + 339796.

Almost surely, 2^54354640 is an apocalyptic number.

It is an amenable number.

54354640 is an abundant number, since it is smaller than the sum of its proper divisors (72020084).

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

54354640 is a wasteful number, since it uses less digits than its factorization.

54354640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679446 (or 679440 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 54354640 is about 7372.5599353278. The cubic root of 54354640 is about 378.8019516504.

Adding to 54354640 its reverse (4645345), we get a palindrome (58999985).

The spelling of 54354640 in words is "fifty-four million, three hundred fifty-four thousand, six hundred forty".