1115570550 has 96 divisors (see below), whose sum is σ = 2874592800. Its totient is φ = 285967360.

The previous prime is 1115570539. The next prime is 1115570563. The reversal of 1115570550 is 550755111.

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, 1378546 + ... + 1379354.

It is an arithmetic number, because the mean of its divisors is an integer number (29943675).

Almost surely, 2^1115570550 is an apocalyptic number.

1115570550 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 1115570550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1437296400).

1115570550 is an abundant number, since it is smaller than the sum of its proper divisors (1759022250).

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

1115570550 is a wasteful number, since it uses less digits than its factorization.

1115570550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 4375, while the sum is 30.

The square root of 1115570550 is about 33400.1579337583. The cubic root of 1115570550 is about 1037.1279703528.

The spelling of 1115570550 in words is "one billion, one hundred fifteen million, five hundred seventy thousand, five hundred fifty".