225467540 has 12 divisors (see below), whose sum is σ = 473481876. Its totient is φ = 90187008.

The previous prime is 225467531. The next prime is 225467587. The reversal of 225467540 is 45764522.

It can be written as a sum of positive squares in 2 ways, for example, as 49056016 + 176411524 = 7004^2 + 13282^2 .

It is a super-2 number, since 2×225467540² = 101671223187303200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225467540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5636669 + ... + 5636708.

It is an arithmetic number, because the mean of its divisors is an integer number (39456823).

Almost surely, 2^225467540 is an apocalyptic number.

225467540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225467540 is an abundant number, since it is smaller than the sum of its proper divisors (248014336).

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

225467540 is a wasteful number, since it uses less digits than its factorization.

225467540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11273386 (or 11273384 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 225467540 is about 15015.5765790062. The cubic root of 225467540 is about 608.6411929376.

The spelling of 225467540 in words is "two hundred twenty-five million, four hundred sixty-seven thousand, five hundred forty".