225771533402 has 4 divisors (see below), whose sum is σ = 338657300106. Its totient is φ = 112885766700.

The previous prime is 225771533353. The next prime is 225771533437. The reversal of 225771533402 is 204335177522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 165387809041 + 60383724361 = 406679^2 + 245731^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225771533402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56442883349 + ... + 56442883352.

Almost surely, 2^225771533402 is an apocalyptic number.

225771533402 is a deficient number, since it is larger than the sum of its proper divisors (112885766704).

225771533402 is a wasteful number, since it uses less digits than its factorization.

225771533402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112885766703.

The product of its (nonzero) digits is 352800, while the sum is 41.

The spelling of 225771533402 in words is "two hundred twenty-five billion, seven hundred seventy-one million, five hundred thirty-three thousand, four hundred two".