52503215420 has 12 divisors (see below), whose sum is σ = 110256752424. Its totient is φ = 21001286160.

The previous prime is 52503215399. The next prime is 52503215447. The reversal of 52503215420 is 2451230525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312580366 + ... + 1312580405.

It is an arithmetic number, because the mean of its divisors is an integer number (9188062702).

Almost surely, 2^52503215420 is an apocalyptic number.

It is an amenable number.

52503215420 is an abundant number, since it is smaller than the sum of its proper divisors (57753537004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52503215420 is a wasteful number, since it uses less digits than its factorization.

52503215420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625160780 (or 2625160778 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 52503215420 its reverse (2451230525), we get a palindrome (54954445945).

The spelling of 52503215420 in words is "fifty-two billion, five hundred three million, two hundred fifteen thousand, four hundred twenty".