5256241920 has 216 divisors, whose sum is σ = 18294822000. Its totient is φ = 1393287168.

The previous prime is 5256241901. The next prime is 5256241933. The reversal of 5256241920 is 291426525.

5256241920 is a `hidden beast` number, since 5 + 2 + 5 + 624 + 1 + 9 + 20 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2060806 + ... + 2063354.

It is an arithmetic number, because the mean of its divisors is an integer number (84698250).

Almost surely, 2^5256241920 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 5256241920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9147411000).

5256241920 is an abundant number, since it is smaller than the sum of its proper divisors (13038580080).

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

5256241920 is a wasteful number, since it uses less digits than its factorization.

5256241920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755 (or 2738 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 5256241920 is about 72499.9442758407. The cubic root of 5256241920 is about 1738.7018458429.

The spelling of 5256241920 in words is "five billion, two hundred fifty-six million, two hundred forty-one thousand, nine hundred twenty".