54489720 has 64 divisors (see below), whose sum is σ = 172080000. Its totient is φ = 13765248.

The previous prime is 54489713. The next prime is 54489727. The reversal of 54489720 is 2798445.

It is an interprime number because it is at equal distance from previous prime (54489713) and next prime (54489727).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54489727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9670 + ... + 14229.

It is an arithmetic number, because the mean of its divisors is an integer number (2688750).

Almost surely, 2^54489720 is an apocalyptic number.

It is an amenable number.

54489720 is an abundant number, since it is smaller than the sum of its proper divisors (117590280).

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

54489720 is a wasteful number, since it uses less digits than its factorization.

54489720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23932 (or 23928 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 54489720 is about 7381.7152478269. The cubic root of 54489720 is about 379.1154866046.

The spelling of 54489720 in words is "fifty-four million, four hundred eighty-nine thousand, seven hundred twenty".