167889225 has 48 divisors (see below), whose sum is σ = 333946880. Its totient is φ = 72705600.

The previous prime is 167889209. The next prime is 167889247. The reversal of 167889225 is 522988761.

It is not a de Polignac number, because 167889225 - 2⁴ = 167889209 is a prime.

It is a super-2 number, since 2×167889225² = 56373583742201250, which contains 22 as substring.

It is a Curzon 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, 1560 + ... + 18390.

Almost surely, 2^167889225 is an apocalyptic number.

167889225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

167889225 is a deficient number, since it is larger than the sum of its proper divisors (166057655).

167889225 is a wasteful number, since it uses less digits than its factorization.

167889225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16870 (or 16865 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 167889225 is about 12957.2074537687. The cubic root of 167889225 is about 551.6635309020.

The spelling of 167889225 in words is "one hundred sixty-seven million, eight hundred eighty-nine thousand, two hundred twenty-five".