52424355840 has 208 divisors, whose sum is σ = 168124927488. Its totient is φ = 13947568128.

The previous prime is 52424355827. The next prime is 52424355847. The reversal of 52424355840 is 4855342425.

It is a junction number, because it is equal to n+sod(n) for n = 52424355792 and 52424355801.

It is not an unprimeable number, because it can be changed into a prime (52424355847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39505257 + ... + 39506583.

Almost surely, 2^52424355840 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 52424355840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84062463744).

52424355840 is an abundant number, since it is smaller than the sum of its proper divisors (115700571648).

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

52424355840 is a wasteful number, since it uses less digits than its factorization.

52424355840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002 (or 1980 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 42.

The spelling of 52424355840 in words is "fifty-two billion, four hundred twenty-four million, three hundred fifty-five thousand, eight hundred forty".