225487812 has 48 divisors (see below), whose sum is σ = 574866432. Its totient is φ = 68222880.

The previous prime is 225487807. The next prime is 225487817. The reversal of 225487812 is 218784522.

225487812 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (225487807) and next prime (225487817).

It is not an unprimeable number, because it can be changed into a prime (225487817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139513 + ... + 141119.

It is an arithmetic number, because the mean of its divisors is an integer number (11976384).

Almost surely, 2^225487812 is an apocalyptic number.

225487812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

225487812 is an abundant number, since it is smaller than the sum of its proper divisors (349378620).

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

225487812 is a wasteful number, since it uses less digits than its factorization.

225487812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688 (or 2686 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 225487812 is about 15016.2515961874. The cubic root of 225487812 is about 608.6594335595.

The spelling of 225487812 in words is "two hundred twenty-five million, four hundred eighty-seven thousand, eight hundred twelve".