54320730 has 32 divisors (see below), whose sum is σ = 130598784. Its totient is φ = 14460096.

The previous prime is 54320689. The next prime is 54320737. The reversal of 54320730 is 3702345.

It is a self number, because there is not a number n which added to its sum of digits gives 54320730.

It is not an unprimeable number, because it can be changed into a prime (54320737) 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, 21072 + ... + 23508.

It is an arithmetic number, because the mean of its divisors is an integer number (4081212).

Almost surely, 2^54320730 is an apocalyptic number.

54320730 is an abundant number, since it is smaller than the sum of its proper divisors (76278054).

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

54320730 is a wasteful number, since it uses less digits than its factorization.

54320730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 54320730 is about 7370.2598325975. The cubic root of 54320730 is about 378.7231614047.

The spelling of 54320730 in words is "fifty-four million, three hundred twenty thousand, seven hundred thirty".