225537833 has 2 divisors, whose sum is σ = 225537834. Its totient is φ = 225537832.

The previous prime is 225537817. The next prime is 225537841. The reversal of 225537833 is 338735522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206554384 + 18983449 = 14372^2 + 4357^2 .

It is a cyclic number.

It is not a de Polignac number, because 225537833 - 2⁴ = 225537817 is a prime.

It is a super-2 number, since 2×225537833² = 101734628228671778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (225537233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112768916 + 112768917.

It is an arithmetic number, because the mean of its divisors is an integer number (112768917).

Almost surely, 2^225537833 is an apocalyptic number.

It is an amenable number.

225537833 is a deficient number, since it is larger than the sum of its proper divisors (1).

225537833 is an equidigital number, since it uses as much as digits as its factorization.

225537833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 38.

The square root of 225537833 is about 15017.9170659582. The cubic root of 225537833 is about 608.7044374738.

The spelling of 225537833 in words is "two hundred twenty-five million, five hundred thirty-seven thousand, eight hundred thirty-three".