5211268056 has 128 divisors (see below), whose sum is σ = 15174950400. Its totient is φ = 1653886080.

The previous prime is 5211268039. The next prime is 5211268057. The reversal of 5211268056 is 6508621125.

5211268056 is a `hidden beast` number, since 521 + 1 + 2 + 6 + 80 + 56 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 5211268056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211268057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1125426 + ... + 1130046.

It is an arithmetic number, because the mean of its divisors is an integer number (118554300).

Almost surely, 2^5211268056 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 5211268056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7587475200).

5211268056 is an abundant number, since it is smaller than the sum of its proper divisors (9963682344).

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

5211268056 is a wasteful number, since it uses less digits than its factorization.

5211268056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886 (or 4876 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 5211268056 is about 72189.1131404175. The cubic root of 5211268056 is about 1733.7286964338.

The spelling of 5211268056 in words is "five billion, two hundred eleven million, two hundred sixty-eight thousand, fifty-six".