5213552640 has 128 divisors (see below), whose sum is σ = 16684686720. Its totient is φ = 1390149632.

The previous prime is 5213552611. The next prime is 5213552677. The reversal of 5213552640 is 462553125.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×5213552640² = 54362262260101939200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486217 + ... + 496823.

It is an arithmetic number, because the mean of its divisors is an integer number (130349115).

Almost surely, 2^5213552640 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 5213552640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8342343360).

5213552640 is an abundant number, since it is smaller than the sum of its proper divisors (11471134080).

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

5213552640 is an equidigital number, since it uses as much as digits as its factorization.

5213552640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10645 (or 10617 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 5213552640 is about 72204.9350113966. The cubic root of 5213552640 is about 1733.9820109909.

The spelling of 5213552640 in words is "five billion, two hundred thirteen million, five hundred fifty-two thousand, six hundred forty".