10556563550 has 96 divisors (see below), whose sum is σ = 21577285632. Its totient is φ = 3818897280.

The previous prime is 10556563547. The next prime is 10556563553. The reversal of 10556563550 is 5536565501.

It is an interprime number because it is at equal distance from previous prime (10556563547) and next prime (10556563553).

It is a super-2 number, since 2×10556563550² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10556563498 and 10556563507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10556563553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9711107 + ... + 9712193.

It is an arithmetic number, because the mean of its divisors is an integer number (224763392).

Almost surely, 2^10556563550 is an apocalyptic number.

10556563550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10556563550 is an abundant number, since it is smaller than the sum of its proper divisors (11020722082).

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

10556563550 is a wasteful number, since it uses less digits than its factorization.

10556563550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402 (or 1397 counting only the distinct ones).

The product of its (nonzero) digits is 337500, while the sum is 41.

The spelling of 10556563550 in words is "ten billion, five hundred fifty-six million, five hundred sixty-three thousand, five hundred fifty".