225165777785357 has 4 divisors (see below), whose sum is σ = 226514075856096. Its totient is φ = 223817479714620.

The previous prime is 225165777785353. The next prime is 225165777785401. The reversal of 225165777785357 is 753587777561522.

225165777785357 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.

It is a cyclic number.

It is not a de Polignac number, because 225165777785357 - 2² = 225165777785353 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 (225165777785353) 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, 674149035119 + ... + 674149035452.

It is an arithmetic number, because the mean of its divisors is an integer number (56628518964024).

Almost surely, 2^{225165777785357} is an apocalyptic number.

It is an amenable number.

225165777785357 is a deficient number, since it is larger than the sum of its proper divisors (1348298070739).

225165777785357 is a wasteful number, since it uses less digits than its factorization.

225165777785357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348298070738.

The product of its digits is 6050520000, while the sum is 77.

The spelling of 225165777785357 in words is "two hundred twenty-five trillion, one hundred sixty-five billion, seven hundred seventy-seven million, seven hundred eighty-five thousand, three hundred fifty-seven".