225724020671 has 2 divisors, whose sum is σ = 225724020672. Its totient is φ = 225724020670.

The previous prime is 225724020661. The next prime is 225724020677. The reversal of 225724020671 is 176020427522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225724020671 - 2³⁰ = 224650278847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225724020677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112862010335 + 112862010336.

It is an arithmetic number, because the mean of its divisors is an integer number (112862010336).

Almost surely, 2^225724020671 is an apocalyptic number.

225724020671 is a deficient number, since it is larger than the sum of its proper divisors (1).

225724020671 is an equidigital number, since it uses as much as digits as its factorization.

225724020671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 225724020671 in words is "two hundred twenty-five billion, seven hundred twenty-four million, twenty thousand, six hundred seventy-one".