225787739 has 8 divisors (see below), whose sum is σ = 229236480. Its totient is φ = 222346600.

The previous prime is 225787729. The next prime is 225787741. The reversal of 225787739 is 937787522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225787739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225787729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92444 + ... + 94854.

It is an arithmetic number, because the mean of its divisors is an integer number (28654560).

Almost surely, 2^225787739 is an apocalyptic number.

225787739 is a deficient number, since it is larger than the sum of its proper divisors (3448741).

225787739 is a wasteful number, since it uses less digits than its factorization.

225787739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801.

The product of its digits is 1481760, while the sum is 50.

The square root of 225787739 is about 15026.2350241170. The cubic root of 225787739 is about 608.9291783948.

The spelling of 225787739 in words is "two hundred twenty-five million, seven hundred eighty-seven thousand, seven hundred thirty-nine".