225782525 has 12 divisors (see below), whose sum is σ = 296439732. Its totient is φ = 170000640.

The previous prime is 225782507. The next prime is 225782569. The reversal of 225782525 is 525287522.

It can be written as a sum of positive squares in 6 ways, for example, as 17355556 + 208426969 = 4166^2 + 14437^2 .

It is not a de Polignac number, because 225782525 - 2⁶ = 225782461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265202 + ... + 266051.

It is an arithmetic number, because the mean of its divisors is an integer number (24703311).

Almost surely, 2^225782525 is an apocalyptic number.

225782525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225782525 is a deficient number, since it is larger than the sum of its proper divisors (70657207).

225782525 is a wasteful number, since it uses less digits than its factorization.

225782525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531280 (or 531275 counting only the distinct ones).

The product of its digits is 112000, while the sum is 38.

The square root of 225782525 is about 15026.0615265611. The cubic root of 225782525 is about 608.9244911293.

The spelling of 225782525 in words is "two hundred twenty-five million, seven hundred eighty-two thousand, five hundred twenty-five".