225531532160157 has 32 divisors (see below), whose sum is σ = 318973733527680. Its totient is φ = 141491890068480.

The previous prime is 225531532160153. The next prime is 225531532160177. The reversal of 225531532160157 is 751061235135522.

It is not a de Polignac number, because 225531532160157 - 2² = 225531532160153 is a prime.

It is a super-4 number, since 4×225531532160157⁴ (a number of 59 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225531532160153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26918983 + ... + 34288404.

It is an arithmetic number, because the mean of its divisors is an integer number (9967929172740).

Almost surely, 2^{225531532160157} is an apocalyptic number.

It is an amenable number.

225531532160157 is a deficient number, since it is larger than the sum of its proper divisors (93442201367523).

225531532160157 is a wasteful number, since it uses less digits than its factorization.

225531532160157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61208493.

The product of its (nonzero) digits is 1890000, while the sum is 48.

Adding to 225531532160157 its reverse (751061235135522), we get a palindrome (976592767295679).

The spelling of 225531532160157 in words is "two hundred twenty-five trillion, five hundred thirty-one billion, five hundred thirty-two million, one hundred sixty thousand, one hundred fifty-seven".