10564562550 has 96 divisors (see below), whose sum is σ = 26930910240. Its totient is φ = 2739686400.

The previous prime is 10564562441. The next prime is 10564562563. The reversal of 10564562550 is 5526546501.

It is a happy number.

It is a super-2 number, since 2×10564562550² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10564562499 and 10564562508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 807864 + ... + 820836.

It is an arithmetic number, because the mean of its divisors is an integer number (280530315).

Almost surely, 2^10564562550 is an apocalyptic number.

10564562550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10564562550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13465455120).

10564562550 is an abundant number, since it is smaller than the sum of its proper divisors (16366347690).

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

10564562550 is a wasteful number, since it uses less digits than its factorization.

10564562550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13138 (or 13133 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 10564562550 in words is "ten billion, five hundred sixty-four million, five hundred sixty-two thousand, five hundred fifty".