11056007550 has 96 divisors (see below), whose sum is σ = 31466628864. Its totient is φ = 2516544000.

The previous prime is 11056007539. The next prime is 11056007569. The reversal of 11056007550 is 5570065011.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 231205 + ... + 274895.

It is an arithmetic number, because the mean of its divisors is an integer number (327777384).

Almost surely, 2^11056007550 is an apocalyptic number.

11056007550 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 11056007550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15733314432).

11056007550 is an abundant number, since it is smaller than the sum of its proper divisors (20410621314).

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

11056007550 is a wasteful number, since it uses less digits than its factorization.

11056007550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43954 (or 43949 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 30.

The spelling of 11056007550 in words is "eleven billion, fifty-six million, seven thousand, five hundred fifty".