1115007550 has 12 divisors (see below), whose sum is σ = 2073914136. Its totient is φ = 446003000.

The previous prime is 1115007541. The next prime is 1115007557. The reversal of 1115007550 is 557005111.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115007557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11150026 + ... + 11150125.

It is an arithmetic number, because the mean of its divisors is an integer number (172826178).

Almost surely, 2^1115007550 is an apocalyptic number.

1115007550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1115007550 is a deficient number, since it is larger than the sum of its proper divisors (958906586).

1115007550 is a wasteful number, since it uses less digits than its factorization.

1115007550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22300163 (or 22300158 counting only the distinct ones).

The product of its (nonzero) digits is 875, while the sum is 25.

The square root of 1115007550 is about 33391.7287662679. The cubic root of 1115007550 is about 1036.9534703172.

The spelling of 1115007550 in words is "one billion, one hundred fifteen million, seven thousand, five hundred fifty".