205225237456 has 10 divisors (see below), whose sum is σ = 397623897602. Its totient is φ = 102612618720.

The previous prime is 205225237439. The next prime is 205225237493. The reversal of 205225237456 is 654732522502.

It can be written as a sum of positive squares in only one way, i.e., 186696583056 + 18528654400 = 432084^2 + 136120^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6413288655 + ... + 6413288686.

Almost surely, 2^205225237456 is an apocalyptic number.

It is an amenable number.

205225237456 is a deficient number, since it is larger than the sum of its proper divisors (192398660146).

205225237456 is a wasteful number, since it uses less digits than its factorization.

205225237456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12826577349 (or 12826577343 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 43.

Adding to 205225237456 its reverse (654732522502), we get a palindrome (859957759958).

The spelling of 205225237456 in words is "two hundred five billion, two hundred twenty-five million, two hundred thirty-seven thousand, four hundred fifty-six".