161050552 has 32 divisors (see below), whose sum is σ = 328204800. Its totient is φ = 73643904.

The previous prime is 161050541. The next prime is 161050559. The reversal of 161050552 is 255050161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161050559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4233 + ... + 18439.

It is an arithmetic number, because the mean of its divisors is an integer number (10256400).

Almost surely, 2^161050552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161050552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164102400).

161050552 is an abundant number, since it is smaller than the sum of its proper divisors (167154248).

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

161050552 is a wasteful number, since it uses less digits than its factorization.

161050552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14335 (or 14331 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 161050552 is about 12690.5694119689. The cubic root of 161050552 is about 544.0691142724.

The spelling of 161050552 in words is "one hundred sixty-one million, fifty thousand, five hundred fifty-two".