52112300420 has 24 divisors (see below), whose sum is σ = 110271224448. Its totient is φ = 20685797600.

The previous prime is 52112300413. The next prime is 52112300459. The reversal of 52112300420 is 2400321125.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 52112300392 and 52112300401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9942476 + ... + 9947715.

It is an arithmetic number, because the mean of its divisors is an integer number (4594634352).

Almost surely, 2^52112300420 is an apocalyptic number.

It is an amenable number.

52112300420 is an abundant number, since it is smaller than the sum of its proper divisors (58158924028).

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

52112300420 is a wasteful number, since it uses less digits than its factorization.

52112300420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19890331 (or 19890329 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 52112300420 its reverse (2400321125), we get a palindrome (54512621545).

The spelling of 52112300420 in words is "fifty-two billion, one hundred twelve million, three hundred thousand, four hundred twenty".