53984945 has 16 divisors (see below), whose sum is σ = 78392448. Its totient is φ = 34840320.

The previous prime is 53984929. The next prime is 53984963. The reversal of 53984945 is 54948935.

It is not a de Polignac number, because 53984945 - 2⁴ = 53984929 is a prime.

It is a super-3 number, since 3×53984945³ (a number of 24 digits) contains 333 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 53984945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44771 + ... + 45960.

It is an arithmetic number, because the mean of its divisors is an integer number (4899528).

Almost surely, 2^53984945 is an apocalyptic number.

It is an amenable number.

53984945 is a deficient number, since it is larger than the sum of its proper divisors (24407503).

53984945 is a wasteful number, since it uses less digits than its factorization.

53984945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90760.

The product of its digits is 777600, while the sum is 47.

The square root of 53984945 is about 7347.4447939403. Note that the first 3 decimals coincide. The cubic root of 53984945 is about 377.9411855714.

The spelling of 53984945 in words is "fifty-three million, nine hundred eighty-four thousand, nine hundred forty-five".