52745038920 has 320 divisors, whose sum is σ = 213273244800. Its totient is φ = 11421388800.

The previous prime is 52745038897. The next prime is 52745038987. The reversal of 52745038920 is 2983054725.

52745038920 is a `hidden beast` number, since 52 + 7 + 4 + 503 + 8 + 92 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 369720 + ... + 492120.

It is an arithmetic number, because the mean of its divisors is an integer number (666478890).

Almost surely, 2^52745038920 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 52745038920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106636622400).

52745038920 is an abundant number, since it is smaller than the sum of its proper divisors (160528205880).

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

52745038920 is a wasteful number, since it uses less digits than its factorization.

52745038920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122450 (or 122437 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 52745038920 in words is "fifty-two billion, seven hundred forty-five million, thirty-eight thousand, nine hundred twenty".