52230769920 has 1296 divisors, whose sum is σ = 229008124800. Its totient is φ = 11342757888.

The previous prime is 52230769901. The next prime is 52230769949. The reversal of 52230769920 is 2996703225.

It is a happy number.

52230769920 is a `hidden beast` number, since 522 + 30 + 7 + 6 + 9 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1296).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 350542006 + ... + 350542154.

It is an arithmetic number, because the mean of its divisors is an integer number (176703800).

Almost surely, 2^52230769920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52230769920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114504062400).

52230769920 is an abundant number, since it is smaller than the sum of its proper divisors (176777354880).

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

52230769920 is a wasteful number, since it uses less digits than its factorization.

52230769920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 52230769920 in words is "fifty-two billion, two hundred thirty million, seven hundred sixty-nine thousand, nine hundred twenty".