225761407 has 2 divisors, whose sum is σ = 225761408. Its totient is φ = 225761406.

The previous prime is 225761299. The next prime is 225761429. The reversal of 225761407 is 704167522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225761407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225761467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112880703 + 112880704.

It is an arithmetic number, because the mean of its divisors is an integer number (112880704).

Almost surely, 2^225761407 is an apocalyptic number.

225761407 is a deficient number, since it is larger than the sum of its proper divisors (1).

225761407 is an equidigital number, since it uses as much as digits as its factorization.

225761407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 225761407 is about 15025.3587977126. The cubic root of 225761407 is about 608.9055057977.

The spelling of 225761407 in words is "two hundred twenty-five million, seven hundred sixty-one thousand, four hundred seven".