225256503464 has 8 divisors (see below), whose sum is σ = 422355944010. Its totient is φ = 112628251728.

The previous prime is 225256503449. The next prime is 225256503467. The reversal of 225256503464 is 464305652522.

It can be written as a sum of positive squares in only one way, i.e., 164883099364 + 60373404100 = 406058^2 + 245710^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (225256503467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14078531459 + ... + 14078531474.

Almost surely, 2^225256503464 is an apocalyptic number.

It is an amenable number.

225256503464 is a deficient number, since it is larger than the sum of its proper divisors (197099440546).

225256503464 is a wasteful number, since it uses less digits than its factorization.

225256503464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28157062939 (or 28157062935 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 44.

The spelling of 225256503464 in words is "two hundred twenty-five billion, two hundred fifty-six million, five hundred three thousand, four hundred sixty-four".