172225088 has 56 divisors (see below), whose sum is σ = 403213824. Its totient is φ = 71424000.

The previous prime is 172225069. The next prime is 172225091. The reversal of 172225088 is 880522271.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×172225088² = 59322961873215488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7688 + ... + 20088.

Almost surely, 2^172225088 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 172225088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201606912).

172225088 is an abundant number, since it is smaller than the sum of its proper divisors (230988736).

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

172225088 is a wasteful number, since it uses less digits than its factorization.

172225088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12451 (or 12441 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 172225088 is about 13123.4556424747. The cubic root of 172225088 is about 556.3722641986.

The spelling of 172225088 in words is "one hundred seventy-two million, two hundred twenty-five thousand, eighty-eight".