225249492 has 48 divisors (see below), whose sum is σ = 575628480. Its totient is φ = 68130048.

The previous prime is 225249491. The next prime is 225249517. The reversal of 225249492 is 294942522.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 225249492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225249491) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3033 + ... + 21440.

It is an arithmetic number, because the mean of its divisors is an integer number (11992260).

Almost surely, 2^225249492 is an apocalyptic number.

It is an amenable number.

225249492 is an abundant number, since it is smaller than the sum of its proper divisors (350378988).

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

225249492 is a wasteful number, since it uses less digits than its factorization.

225249492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24552 (or 24550 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 225249492 is about 15008.3140958603. The cubic root of 225249492 is about 608.4449255136. Note that the first 3 decimals are identical.

The spelling of 225249492 in words is "two hundred twenty-five million, two hundred forty-nine thousand, four hundred ninety-two".