225981767 has 8 divisors (see below), whose sum is σ = 247059072. Its totient is φ = 204993400.

The previous prime is 225981761. The next prime is 225981823. The reversal of 225981767 is 767189522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225981767 - 2⁶ = 225981703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225981761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16859 + ... + 27132.

It is an arithmetic number, because the mean of its divisors is an integer number (30882384).

Almost surely, 2^225981767 is an apocalyptic number.

225981767 is a deficient number, since it is larger than the sum of its proper divisors (21077305).

225981767 is a wasteful number, since it uses less digits than its factorization.

225981767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44469.

The product of its digits is 423360, while the sum is 47.

The square root of 225981767 is about 15032.6899455819. The cubic root of 225981767 is about 609.1035537969.

The spelling of 225981767 in words is "two hundred twenty-five million, nine hundred eighty-one thousand, seven hundred sixty-seven".