112155550 has 48 divisors (see below), whose sum is σ = 226860480. Its totient is φ = 41005440.

The previous prime is 112155539. The next prime is 112155553. The reversal of 112155550 is 55551211.

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 (112155553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70059 + ... + 71641.

It is an arithmetic number, because the mean of its divisors is an integer number (4726260).

Almost surely, 2^112155550 is an apocalyptic number.

112155550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

112155550 is an abundant number, since it is smaller than the sum of its proper divisors (114704930).

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

112155550 is a wasteful number, since it uses less digits than its factorization.

112155550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1712 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 25.

The square root of 112155550 is about 10590.3517410896. The cubic root of 112155550 is about 482.2515029573.

The spelling of 112155550 in words is "one hundred twelve million, one hundred fifty-five thousand, five hundred fifty".