53021529 has 12 divisors (see below), whose sum is σ = 83549232. Its totient is φ = 32134200.

The previous prime is 53021513. The next prime is 53021543. The reversal of 53021529 is 92512035.

It is not a de Polignac number, because 53021529 - 2⁴ = 53021513 is a prime.

It is a super-2 number, since 2×53021529² = 5622565074995682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53028529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 267687 + ... + 267884.

It is an arithmetic number, because the mean of its divisors is an integer number (6962436).

Almost surely, 2^53021529 is an apocalyptic number.

It is an amenable number.

53021529 is a deficient number, since it is larger than the sum of its proper divisors (30527703).

53021529 is a wasteful number, since it uses less digits than its factorization.

53021529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535588 (or 535585 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 53021529 is about 7281.5883569452. The cubic root of 53021529 is about 375.6794295910.

The spelling of 53021529 in words is "fifty-three million, twenty-one thousand, five hundred twenty-nine".