225712077 has 32 divisors (see below), whose sum is σ = 338659200. Its totient is φ = 132876288.

The previous prime is 225712057. The next prime is 225712121. The reversal of 225712077 is 770217522.

It is not a de Polignac number, because 225712077 - 2⁶ = 225712013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225712007) 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, 104553 + ... + 106689.

It is an arithmetic number, because the mean of its divisors is an integer number (10583100).

Almost surely, 2^225712077 is an apocalyptic number.

It is an amenable number.

225712077 is a deficient number, since it is larger than the sum of its proper divisors (112947123).

225712077 is a wasteful number, since it uses less digits than its factorization.

225712077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 225712077 is about 15023.7171498934. The cubic root of 225712077 is about 608.8611529312.

Adding to 225712077 its reverse (770217522), we get a palindrome (995929599).

Subtracting 225712077 from its reverse (770217522), we obtain a palindrome (544505445).

The spelling of 225712077 in words is "two hundred twenty-five million, seven hundred twelve thousand, seventy-seven".