225738571 has 2 divisors, whose sum is σ = 225738572. Its totient is φ = 225738570.

The previous prime is 225738547. The next prime is 225738587. The reversal of 225738571 is 175837522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225738571 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225738521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112869285 + 112869286.

It is an arithmetic number, because the mean of its divisors is an integer number (112869286).

Almost surely, 2^225738571 is an apocalyptic number.

225738571 is a deficient number, since it is larger than the sum of its proper divisors (1).

225738571 is an equidigital number, since it uses as much as digits as its factorization.

225738571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 40.

The square root of 225738571 is about 15024.5988631976. The cubic root of 225738571 is about 608.8849746314.

The spelling of 225738571 in words is "two hundred twenty-five million, seven hundred thirty-eight thousand, five hundred seventy-one".