158225550 has 96 divisors (see below), whose sum is σ = 463017984. Its totient is φ = 34992000.

The previous prime is 158225539. The next prime is 158225591. The reversal of 158225550 is 55522851.

158225550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 30120 + ... + 34980.

It is an arithmetic number, because the mean of its divisors is an integer number (4823104).

Almost surely, 2^158225550 is an apocalyptic number.

158225550 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 158225550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231508992).

158225550 is an abundant number, since it is smaller than the sum of its proper divisors (304792434).

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

158225550 is a wasteful number, since it uses less digits than its factorization.

158225550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4914 (or 4909 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 158225550 is about 12578.7737876154. The cubic root of 158225550 is about 540.8691421837.

The spelling of 158225550 in words is "one hundred fifty-eight million, two hundred twenty-five thousand, five hundred fifty".