172255050 has 288 divisors, whose sum is σ = 564071040. Its totient is φ = 37171200.

The previous prime is 172255049. The next prime is 172255051. The reversal of 172255050 is 50552271.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (172255049) and next prime (172255051).

It is a super-3 number, since 3×172255050³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (172255051) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1935406 + ... + 1935494.

It is an arithmetic number, because the mean of its divisors is an integer number (1958580).

Almost surely, 2^172255050 is an apocalyptic number.

172255050 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 172255050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282035520).

172255050 is an abundant number, since it is smaller than the sum of its proper divisors (391815990).

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

172255050 is a wasteful number, since it uses less digits than its factorization.

172255050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 172255050 is about 13124.5971366743. The cubic root of 172255050 is about 556.4045263570.

The spelling of 172255050 in words is "one hundred seventy-two million, two hundred fifty-five thousand, fifty".