53921329 has 8 divisors (see below), whose sum is σ = 67226688. Its totient is φ = 42016560.

The previous prime is 53921327. The next prime is 53921347. The reversal of 53921329 is 92312935.

53921329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 53921329 - 2¹ = 53921327 is a prime.

It is a super-2 number, since 2×53921329² = 5815019442252482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53921294 and 53921303.

It is not an unprimeable number, because it can be changed into a prime (53921323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350062 + ... + 350215.

It is an arithmetic number, because the mean of its divisors is an integer number (8403336).

Almost surely, 2^53921329 is an apocalyptic number.

It is an amenable number.

53921329 is a deficient number, since it is larger than the sum of its proper divisors (13305359).

53921329 is a wasteful number, since it uses less digits than its factorization.

53921329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700295.

The product of its digits is 14580, while the sum is 34.

The square root of 53921329 is about 7343.1143937705. The cubic root of 53921329 is about 377.7926715934.

The spelling of 53921329 in words is "fifty-three million, nine hundred twenty-one thousand, three hundred twenty-nine".