225291510 has 64 divisors (see below), whose sum is σ = 602933760. Its totient is φ = 59862240.

The previous prime is 225291503. The next prime is 225291533. The reversal of 225291510 is 15192522.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 82629 + ... + 85311.

It is an arithmetic number, because the mean of its divisors is an integer number (9420840).

Almost surely, 2^225291510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225291510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301466880).

225291510 is an abundant number, since it is smaller than the sum of its proper divisors (377642250).

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

225291510 is a wasteful number, since it uses less digits than its factorization.

225291510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3010 (or 3004 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 225291510 is about 15009.7138547009. The cubic root of 225291510 is about 608.4827562307.

The spelling of 225291510 in words is "two hundred twenty-five million, two hundred ninety-one thousand, five hundred ten".