54320280 has 64 divisors (see below), whose sum is σ = 186243840. Its totient is φ = 12415872.

The previous prime is 54320269. The next prime is 54320281. The reversal of 54320280 is 8202345.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 54320280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54320281) 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, 31494 + ... + 33173.

It is an arithmetic number, because the mean of its divisors is an integer number (2910060).

Almost surely, 2^54320280 is an apocalyptic number.

It is an amenable number.

54320280 is an abundant number, since it is smaller than the sum of its proper divisors (131923560).

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

54320280 is a wasteful number, since it uses less digits than its factorization.

54320280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64688 (or 64684 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 54320280 is about 7370.2293044382. The cubic root of 54320280 is about 378.7221156045.

The spelling of 54320280 in words is "fifty-four million, three hundred twenty thousand, two hundred eighty".