3645531250 has 28 divisors (see below), whose sum is σ = 6835342194. Its totient is φ = 1458200000.

The previous prime is 3645531209. The next prime is 3645531283. The reversal of 3645531250 is 521355463.

It can be written as a sum of positive squares in 7 ways, for example, as 3168676681 + 476854569 = 56291^2 + 21837^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 27079 + ... + 89578.

Almost surely, 2^3645531250 is an apocalyptic number.

3645531250 is a deficient number, since it is larger than the sum of its proper divisors (3189810944).

3645531250 is an frugal number, since it uses more digits than its factorization.

3645531250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116689 (or 116664 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 3645531250 is about 60378.2349029847. The cubic root of 3645531250 is about 1539.0531158437.

The spelling of 3645531250 in words is "three billion, six hundred forty-five million, five hundred thirty-one thousand, two hundred fifty".