225545522402 has 4 divisors (see below), whose sum is σ = 338318283606. Its totient is φ = 112772761200.

The previous prime is 225545522393. The next prime is 225545522431. The reversal of 225545522402 is 204225545522.

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., 222813264961 + 2732257441 = 472031^2 + 52271^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56386380599 + ... + 56386380602.

Almost surely, 2^225545522402 is an apocalyptic number.

225545522402 is a deficient number, since it is larger than the sum of its proper divisors (112772761204).

225545522402 is a wasteful number, since it uses less digits than its factorization.

225545522402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112772761203.

The product of its (nonzero) digits is 320000, while the sum is 38.

The spelling of 225545522402 in words is "two hundred twenty-five billion, five hundred forty-five million, five hundred twenty-two thousand, four hundred two".