225067521257 has 4 divisors (see below), whose sum is σ = 226448303760. Its totient is φ = 223686738756.

The previous prime is 225067521233. The next prime is 225067521271. The reversal of 225067521257 is 752125760522.

It is a happy number.

225067521257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 752125760522 = 2 ⋅376062880261.

It is a cyclic number.

It is not a de Polignac number, because 225067521257 - 2²⁸ = 224799085801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225067511257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690391007 + ... + 690391332.

It is an arithmetic number, because the mean of its divisors is an integer number (56612075940).

Almost surely, 2^225067521257 is an apocalyptic number.

It is an amenable number.

225067521257 is a deficient number, since it is larger than the sum of its proper divisors (1380782503).

225067521257 is a wasteful number, since it uses less digits than its factorization.

225067521257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380782502.

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 225067521257 in words is "two hundred twenty-five billion, sixty-seven million, five hundred twenty-one thousand, two hundred fifty-seven".