52231705578 has 64 divisors (see below), whose sum is σ = 125450680320. Its totient is φ = 16013215296.

The previous prime is 52231705577. The next prime is 52231705637. The reversal of 52231705578 is 87550713225.

52231705578 is a `hidden beast` number, since 5 + 2 + 2 + 3 + 1 + 70 + 5 + 578 = 666.

It is not an unprimeable number, because it can be changed into a prime (52231705577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60151 + ... + 328757.

It is an arithmetic number, because the mean of its divisors is an integer number (1960166880).

Almost surely, 2^52231705578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52231705578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62725340160).

52231705578 is an abundant number, since it is smaller than the sum of its proper divisors (73218974742).

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

52231705578 is a wasteful number, since it uses less digits than its factorization.

52231705578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268908 (or 268902 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 45.

The spelling of 52231705578 in words is "fifty-two billion, two hundred thirty-one million, seven hundred five thousand, five hundred seventy-eight".