54660840 has 128 divisors (see below), whose sum is σ = 181560960. Its totient is φ = 13077504.

The previous prime is 54660833. The next prime is 54660847. The reversal of 54660840 is 4806645.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (54660833) and next prime (54660847).

It is not an unprimeable number, because it can be changed into a prime (54660847) 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 31 ways as a sum of consecutive naturals, for example, 57247 + ... + 58193.

It is an arithmetic number, because the mean of its divisors is an integer number (1418445).

Almost surely, 2^54660840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54660840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90780480).

54660840 is an abundant number, since it is smaller than the sum of its proper divisors (126900120).

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

54660840 is a wasteful number, since it uses less digits than its factorization.

54660840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 54660840 is about 7393.2969641426. The cubic root of 54660840 is about 379.5119311068.

The spelling of 54660840 in words is "fifty-four million, six hundred sixty thousand, eight hundred forty".