54720345 has 16 divisors (see below), whose sum is σ = 87664320. Its totient is φ = 29146944.

The previous prime is 54720343. The next prime is 54720349. The reversal of 54720345 is 54302745.

It is not a de Polignac number, because 54720345 - 2¹ = 54720343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54720343) 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, 13126 + ... + 16784.

It is an arithmetic number, because the mean of its divisors is an integer number (5479020).

Almost surely, 2^54720345 is an apocalyptic number.

It is an amenable number.

54720345 is a deficient number, since it is larger than the sum of its proper divisors (32943975).

54720345 is a wasteful number, since it uses less digits than its factorization.

54720345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 54720345 is about 7397.3201228553. The cubic root of 54720345 is about 379.6495961925.

The spelling of 54720345 in words is "fifty-four million, seven hundred twenty thousand, three hundred forty-five".