52503201021 has 16 divisors (see below), whose sum is σ = 72762508224. Its totient is φ = 33645809664.

The previous prime is 52503201007. The next prime is 52503201029. The reversal of 52503201021 is 12010230525.

It is not a de Polignac number, because 52503201021 - 2²² = 52499006717 is a prime.

It is a super-2 number, since 2×52503201021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52503201029) 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, 2840196 + ... + 2858621.

It is an arithmetic number, because the mean of its divisors is an integer number (4547656764).

Almost surely, 2^52503201021 is an apocalyptic number.

It is an amenable number.

52503201021 is a deficient number, since it is larger than the sum of its proper divisors (20259307203).

52503201021 is a wasteful number, since it uses less digits than its factorization.

52503201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5698940.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 52503201021 its reverse (12010230525), we get a palindrome (64513431546).

The spelling of 52503201021 in words is "fifty-two billion, five hundred three million, two hundred one thousand, twenty-one".