189250505552 has 20 divisors (see below), whose sum is σ = 366714621396. Its totient is φ = 94614474240.

The previous prime is 189250505551. The next prime is 189250505593. The reversal of 189250505552 is 255505052981.

It can be written as a sum of positive squares in 2 ways, for example, as 175055212816 + 14195292736 = 418396^2 + 119144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 189250505497 and 189250505506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189250505551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527849 + ... + 810632.

Almost surely, 2^189250505552 is an apocalyptic number.

It is an amenable number.

189250505552 is a deficient number, since it is larger than the sum of its proper divisors (177464115844).

189250505552 is a wasteful number, since it uses less digits than its factorization.

189250505552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347326 (or 1347320 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 47.

The spelling of 189250505552 in words is "one hundred eighty-nine billion, two hundred fifty million, five hundred five thousand, five hundred fifty-two".