53820929 has 16 divisors (see below), whose sum is σ = 59673600. Its totient is φ = 48314880.

The previous prime is 53820859. The next prime is 53820937. The reversal of 53820929 is 92902835.

It is a cyclic number.

It is not a de Polignac number, because 53820929 - 2²⁰ = 52772353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53820892 and 53820901.

It is not an unprimeable number, because it can be changed into a prime (53820959) 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, 37772 + ... + 39170.

It is an arithmetic number, because the mean of its divisors is an integer number (3729600).

Almost surely, 2^53820929 is an apocalyptic number.

It is an amenable number.

53820929 is a deficient number, since it is larger than the sum of its proper divisors (5852671).

53820929 is a wasteful number, since it uses less digits than its factorization.

53820929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 53820929 is about 7336.2748721678. The cubic root of 53820929 is about 377.5580461302.

The spelling of 53820929 in words is "fifty-three million, eight hundred twenty thousand, nine hundred twenty-nine".