53328979 has 8 divisors (see below), whose sum is σ = 59163840. Its totient is φ = 47658600.

The previous prime is 53328967. The next prime is 53329009. The reversal of 53328979 is 97982335.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53328979 - 2¹⁵ = 53296211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53320979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40437 + ... + 41734.

It is an arithmetic number, because the mean of its divisors is an integer number (7395480).

Almost surely, 2^53328979 is an apocalyptic number.

53328979 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

53328979 is a deficient number, since it is larger than the sum of its proper divisors (5834861).

53328979 is a wasteful number, since it uses less digits than its factorization.

53328979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82241.

The product of its digits is 408240, while the sum is 46.

The square root of 53328979 is about 7302.6693064933. The cubic root of 53328979 is about 376.4041673122.

The spelling of 53328979 in words is "fifty-three million, three hundred twenty-eight thousand, nine hundred seventy-nine".