225474646474501 has 2 divisors, whose sum is σ = 225474646474502. Its totient is φ = 225474646474500.

The previous prime is 225474646474499. The next prime is 225474646474529. The reversal of 225474646474501 is 105474646474522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139781579201476 + 85693067273025 = 11822926^2 + 9257055^2 .

It is a cyclic number.

It is not a de Polignac number, because 225474646474501 - 2¹ = 225474646474499 is a prime.

Together with 225474646474499, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 225474646474501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225474646474901) 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, 112737323237250 + 112737323237251.

It is an arithmetic number, because the mean of its divisors is an integer number (112737323237251).

Almost surely, 2^{225474646474501} is an apocalyptic number.

It is an amenable number.

225474646474501 is a deficient number, since it is larger than the sum of its proper divisors (1).

225474646474501 is an equidigital number, since it uses as much as digits as its factorization.

225474646474501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180633600, while the sum is 61.

The spelling of 225474646474501 in words is "two hundred twenty-five trillion, four hundred seventy-four billion, six hundred forty-six million, four hundred seventy-four thousand, five hundred one".