225765772652 has 36 divisors (see below), whose sum is σ = 459841521384. Its totient is φ = 96704778240.

The previous prime is 225765772651. The next prime is 225765772663. The reversal of 225765772652 is 256277567522.

It is a happy number.

It is a super-2 number, since 2×225765772652² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225765772651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57452 + ... + 674412.

It is an arithmetic number, because the mean of its divisors is an integer number (12773375594).

Almost surely, 2^225765772652 is an apocalyptic number.

It is an amenable number.

225765772652 is an abundant number, since it is smaller than the sum of its proper divisors (234075748732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225765772652 is a wasteful number, since it uses less digits than its factorization.

225765772652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618846 (or 618837 counting only the distinct ones).

The product of its digits is 24696000, while the sum is 56.

The spelling of 225765772652 in words is "two hundred twenty-five billion, seven hundred sixty-five million, seven hundred seventy-two thousand, six hundred fifty-two".