53058021 has 4 divisors (see below), whose sum is σ = 70744032. Its totient is φ = 35372012.

The previous prime is 53058011. The next prime is 53058029. The reversal of 53058021 is 12085035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53058021 - 2⁹ = 53057509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53057982 and 53058000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53058029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8843001 + ... + 8843006.

It is an arithmetic number, because the mean of its divisors is an integer number (17686008).

Almost surely, 2^53058021 is an apocalyptic number.

It is an amenable number.

53058021 is a deficient number, since it is larger than the sum of its proper divisors (17686011).

53058021 is a wasteful number, since it uses less digits than its factorization.

53058021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17686010.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 53058021 is about 7284.0936979147. The cubic root of 53058021 is about 375.7655967893.

The spelling of 53058021 in words is "fifty-three million, fifty-eight thousand, twenty-one".