225172562077 has 16 divisors (see below), whose sum is σ = 235226560320. Its totient is φ = 215328958848.

The previous prime is 225172562057. The next prime is 225172562081. The reversal of 225172562077 is 770265271522.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225172562077 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 (225172562047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16184358 + ... + 16198264.

It is an arithmetic number, because the mean of its divisors is an integer number (14701660020).

Almost surely, 2^225172562077 is an apocalyptic number.

It is an amenable number.

225172562077 is a deficient number, since it is larger than the sum of its proper divisors (10053998243).

225172562077 is a wasteful number, since it uses less digits than its factorization.

225172562077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21420.

The product of its (nonzero) digits is 823200, while the sum is 46.

The spelling of 225172562077 in words is "two hundred twenty-five billion, one hundred seventy-two million, five hundred sixty-two thousand, seventy-seven".