53121029 has 8 divisors (see below), whose sum is σ = 57264480. Its totient is φ = 48985776.

The previous prime is 53121001. The next prime is 53121031. The reversal of 53121029 is 92012135.

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 53121029 - 2²⁰ = 52072453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53120995 and 53121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53121049) 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, 21542 + ... + 23880.

It is an arithmetic number, because the mean of its divisors is an integer number (7158060).

Almost surely, 2^53121029 is an apocalyptic number.

It is an amenable number.

53121029 is a deficient number, since it is larger than the sum of its proper divisors (4143451).

53121029 is a wasteful number, since it uses less digits than its factorization.

53121029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 53121029 is about 7288.4174551133. The cubic root of 53121029 is about 375.9142822747.

The spelling of 53121029 in words is "fifty-three million, one hundred twenty-one thousand, twenty-nine".