1101245550 has 96 divisors (see below), whose sum is σ = 2985237504. Its totient is φ = 267456000.

The previous prime is 1101245539. The next prime is 1101245569. The reversal of 1101245550 is 555421011.

It is a super-2 number, since 2×1101245550² = 2425483522789605000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1101245550.

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, 72085 + ... + 86015.

It is an arithmetic number, because the mean of its divisors is an integer number (31096224).

Almost surely, 2^1101245550 is an apocalyptic number.

1101245550 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 1101245550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1492618752).

1101245550 is an abundant number, since it is smaller than the sum of its proper divisors (1883991954).

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

1101245550 is a wasteful number, since it uses less digits than its factorization.

1101245550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13994 (or 13989 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1101245550 is about 33185.0199638331. The cubic root of 1101245550 is about 1032.6695916708.

Adding to 1101245550 its reverse (555421011), we get a palindrome (1656666561).

The spelling of 1101245550 in words is "one billion, one hundred one million, two hundred forty-five thousand, five hundred fifty".