225552947 has 2 divisors, whose sum is σ = 225552948. Its totient is φ = 225552946.

The previous prime is 225552941. The next prime is 225552949. The reversal of 225552947 is 749255522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225552947 is a prime.

Together with 225552949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225552941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112776473 + 112776474.

It is an arithmetic number, because the mean of its divisors is an integer number (112776474).

Almost surely, 2^225552947 is an apocalyptic number.

225552947 is a deficient number, since it is larger than the sum of its proper divisors (1).

225552947 is an equidigital number, since it uses as much as digits as its factorization.

225552947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 41.

The square root of 225552947 is about 15018.4202564717. The cubic root of 225552947 is about 608.7180342368.

The spelling of 225552947 in words is "two hundred twenty-five million, five hundred fifty-two thousand, nine hundred forty-seven".