3731577566225 has 24 divisors (see below), whose sum is σ = 4950538145280. Its totient is φ = 2781779976000.

The previous prime is 3731577566159. The next prime is 3731577566287. The reversal of 3731577566225 is 5226657751373.

3731577566225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3731577566225 - 2²⁶ = 3731510457361 is a prime.

It is a super-3 number, since 3×3731577566225³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64364081 + ... + 64422030.

It is an arithmetic number, because the mean of its divisors is an integer number (206272422720).

Almost surely, 2^{3731577566225} is an apocalyptic number.

It is an amenable number.

3731577566225 is a deficient number, since it is larger than the sum of its proper divisors (1218960579055).

3731577566225 is a wasteful number, since it uses less digits than its factorization.

3731577566225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128786201 (or 128786196 counting only the distinct ones).

The product of its digits is 55566000, while the sum is 59.

The spelling of 3731577566225 in words is "three trillion, seven hundred thirty-one billion, five hundred seventy-seven million, five hundred sixty-six thousand, two hundred twenty-five".