225517710 has 64 divisors (see below), whose sum is σ = 595206144. Its totient is φ = 54230400.

The previous prime is 225517687. The next prime is 225517741. The reversal of 225517710 is 17715522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39220 + ... + 44600.

It is an arithmetic number, because the mean of its divisors is an integer number (9300096).

Almost surely, 2^225517710 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225517710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297603072).

225517710 is an abundant number, since it is smaller than the sum of its proper divisors (369688434).

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

225517710 is a wasteful number, since it uses less digits than its factorization.

225517710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 225517710 is about 15017.2470846024. The cubic root of 225517710 is about 608.6863336025.

The spelling of 225517710 in words is "two hundred twenty-five million, five hundred seventeen thousand, seven hundred ten".