5236256646 has 96 divisors (see below), whose sum is σ = 11925856800. Its totient is φ = 1658280960.

The previous prime is 5236256633. The next prime is 5236256681. The reversal of 5236256646 is 6466526325.

5236256646 is a `hidden beast` number, since 5 + 23 + 62 + 566 + 4 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13460620 + ... + 13461008.

It is an arithmetic number, because the mean of its divisors is an integer number (124227675).

Almost surely, 2^5236256646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5236256646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5962928400).

5236256646 is an abundant number, since it is smaller than the sum of its proper divisors (6689600154).

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

5236256646 is a wasteful number, since it uses less digits than its factorization.

5236256646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 771 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The square root of 5236256646 is about 72361.9834305279. The cubic root of 5236256646 is about 1736.4954173254.

The spelling of 5236256646 in words is "five billion, two hundred thirty-six million, two hundred fifty-six thousand, six hundred forty-six".