538201902556 has 36 divisors (see below), whose sum is σ = 995872415160. Its totient is φ = 254466139680.

The previous prime is 538201902547. The next prime is 538201902559. The reversal of 538201902556 is 655209102835.

It is a super-2 number, since 2×538201902556² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538201902559) 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, 436735 + ... + 1125673.

Almost surely, 2^538201902556 is an apocalyptic number.

It is an amenable number.

538201902556 is a deficient number, since it is larger than the sum of its proper divisors (457670512604).

538201902556 is a wasteful number, since it uses less digits than its factorization.

538201902556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689522 (or 689501 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 538201902556 in words is "five hundred thirty-eight billion, two hundred one million, nine hundred two thousand, five hundred fifty-six".