225207642 has 32 divisors (see below), whose sum is σ = 493884864. Its totient is φ = 67894400.

The previous prime is 225207613. The next prime is 225207643. The reversal of 225207642 is 246702522.

It is not an unprimeable number, because it can be changed into a prime (225207643) 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, 4342 + ... + 21662.

It is an arithmetic number, because the mean of its divisors is an integer number (15433902).

Almost surely, 2^225207642 is an apocalyptic number.

225207642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225207642 is an abundant number, since it is smaller than the sum of its proper divisors (268677222).

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

225207642 is a wasteful number, since it uses less digits than its factorization.

225207642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17534.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 225207642 is about 15006.9198038771. The cubic root of 225207642 is about 608.4072413779.

The spelling of 225207642 in words is "two hundred twenty-five million, two hundred seven thousand, six hundred forty-two".