225570077 has 4 divisors (see below), whose sum is σ = 225832320. Its totient is φ = 225307836.

The previous prime is 225570041. The next prime is 225570133. The reversal of 225570077 is 770075522.

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: 770075522 = 2 ⋅385037761.

It is a cyclic number.

It is not a de Polignac number, because 225570077 - 2¹⁰ = 225569053 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 (225570277) 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 in 3 ways as a sum of consecutive naturals, for example, 129827 + ... + 131552.

It is an arithmetic number, because the mean of its divisors is an integer number (56458080).

Almost surely, 2^225570077 is an apocalyptic number.

It is an amenable number.

225570077 is a deficient number, since it is larger than the sum of its proper divisors (262243).

225570077 is an equidigital number, since it uses as much as digits as its factorization.

225570077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262242.

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 225570077 is about 15018.9905453063. The cubic root of 225570077 is about 608.7334438869.

Subtracting 225570077 from its reverse (770075522), we obtain a palindrome (544505445).

The spelling of 225570077 in words is "two hundred twenty-five million, five hundred seventy thousand, seventy-seven".