5256340650 has 288 divisors, whose sum is σ = 16241067648. Its totient is φ = 1206374400.

The previous prime is 5256340631. The next prime is 5256340651. The reversal of 5256340650 is 560436525.

It is a happy number.

5256340650 is a `hidden beast` number, since 5 + 2 + 563 + 40 + 6 + 50 = 666.

It is not an unprimeable number, because it can be changed into a prime (5256340651) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 15597282 + ... + 15597618.

It is an arithmetic number, because the mean of its divisors is an integer number (56392596).

Almost surely, 2^5256340650 is an apocalyptic number.

5256340650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5256340650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8120533824).

5256340650 is an abundant number, since it is smaller than the sum of its proper divisors (10984726998).

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

5256340650 is a wasteful number, since it uses less digits than its factorization.

5256340650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 5256340650 is about 72500.6251697184. The cubic root of 5256340650 is about 1738.7127320084.

The spelling of 5256340650 in words is "five billion, two hundred fifty-six million, three hundred forty thousand, six hundred fifty".