54320449 has 16 divisors (see below), whose sum is σ = 59230080. Its totient is φ = 49645440.

The previous prime is 54320437. The next prime is 54320471. The reversal of 54320449 is 94402345.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54320449 - 2¹¹ = 54318401 is a prime.

It is a super-2 number, since 2×54320449² = 5901422359123202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54320449.

It is not an unprimeable number, because it can be changed into a prime (54326449) 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, 79899 + ... + 80575.

It is an arithmetic number, because the mean of its divisors is an integer number (3701880).

Almost surely, 2^54320449 is an apocalyptic number.

It is an amenable number.

54320449 is a deficient number, since it is larger than the sum of its proper divisors (4909631).

54320449 is a wasteful number, since it uses less digits than its factorization.

54320449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 54320449 is about 7370.2407694729. The cubic root of 54320449 is about 378.7225083612.

The spelling of 54320449 in words is "fifty-four million, three hundred twenty thousand, four hundred forty-nine".