54801640 has 32 divisors (see below), whose sum is σ = 128666880. Its totient is φ = 20967232.

The previous prime is 54801631. The next prime is 54801641. The reversal of 54801640 is 4610845.

It is a junction number, because it is equal to n+sod(n) for n = 54801599 and 54801608.

It is not an unprimeable number, because it can be changed into a prime (54801641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28864 + ... + 30703.

It is an arithmetic number, because the mean of its divisors is an integer number (4020840).

Almost surely, 2^54801640 is an apocalyptic number.

It is an amenable number.

54801640 is an abundant number, since it is smaller than the sum of its proper divisors (73865240).

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

54801640 is a wasteful number, since it uses less digits than its factorization.

54801640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59601 (or 59597 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 54801640 is about 7402.8129788615. The cubic root of 54801640 is about 379.8375113235.

The spelling of 54801640 in words is "fifty-four million, eight hundred one thousand, six hundred forty".