170225890 has 16 divisors (see below), whose sum is σ = 307550520. Its totient is φ = 67836160.

The previous prime is 170225857. The next prime is 170225893. The reversal of 170225890 is 98522071.

170225890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 61795321 + 108430569 = 7861^2 + 10413^2 .

It is not an unprimeable number, because it can be changed into a prime (170225893) 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, 28951 + ... + 34330.

Almost surely, 2^170225890 is an apocalyptic number.

170225890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

170225890 is a deficient number, since it is larger than the sum of its proper divisors (137324630).

170225890 is a wasteful number, since it uses less digits than its factorization.

170225890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63557.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 170225890 is about 13047.0644207806. The cubic root of 170225890 is about 554.2110804913.

The spelling of 170225890 in words is "one hundred seventy million, two hundred twenty-five thousand, eight hundred ninety".