225057720457 has 2 divisors, whose sum is σ = 225057720458. Its totient is φ = 225057720456.

The previous prime is 225057720451. The next prime is 225057720487. The reversal of 225057720457 is 754027750522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223179711561 + 1878008896 = 472419^2 + 43336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225057720457 is a prime.

It is not a weakly prime, because it can be changed into another prime (225057720451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112528860228 + 112528860229.

It is an arithmetic number, because the mean of its divisors is an integer number (112528860229).

Almost surely, 2^225057720457 is an apocalyptic number.

It is an amenable number.

225057720457 is a deficient number, since it is larger than the sum of its proper divisors (1).

225057720457 is an equidigital number, since it uses as much as digits as its factorization.

225057720457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1372000, while the sum is 46.

The spelling of 225057720457 in words is "two hundred twenty-five billion, fifty-seven million, seven hundred twenty thousand, four hundred fifty-seven".