225257271157 has 4 divisors (see below), whose sum is σ = 225258316780. Its totient is φ = 225256225536.

The previous prime is 225257271133. The next prime is 225257271167. The reversal of 225257271157 is 751172752522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 110206736676 + 115050534481 = 331974^2 + 339191^2 .

It is a cyclic number.

It is not a de Polignac number, because 225257271157 - 2²³ = 225248882549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225257271167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67482 + ... + 674587.

It is an arithmetic number, because the mean of its divisors is an integer number (56314579195).

Almost surely, 2^225257271157 is an apocalyptic number.

It is an amenable number.

225257271157 is a deficient number, since it is larger than the sum of its proper divisors (1045623).

225257271157 is an equidigital number, since it uses as much as digits as its factorization.

225257271157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045622.

The product of its digits is 686000, while the sum is 46.

The spelling of 225257271157 in words is "two hundred twenty-five billion, two hundred fifty-seven million, two hundred seventy-one thousand, one hundred fifty-seven".