52252552440 has 384 divisors, whose sum is σ = 192760888320. Its totient is φ = 12625113600.

The previous prime is 52252552433. The next prime is 52252552487. The reversal of 52252552440 is 4425525225.

52252552440 is a `hidden beast` number, since 52 + 2 + 52 + 552 + 4 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52252552395 and 52252552404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42446625 + ... + 42447855.

It is an arithmetic number, because the mean of its divisors is an integer number (501981480).

Almost surely, 2^52252552440 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 52252552440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96380444160).

52252552440 is an abundant number, since it is smaller than the sum of its proper divisors (140508335880).

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

52252552440 is a wasteful number, since it uses less digits than its factorization.

52252552440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The spelling of 52252552440 in words is "fifty-two billion, two hundred fifty-two million, five hundred fifty-two thousand, four hundred forty".