3661400325 has 48 divisors (see below), whose sum is σ = 6728515776. Its totient is φ = 1741708800.

The previous prime is 3661400317. The next prime is 3661400357. The reversal of 3661400325 is 5230041663.

It is not a de Polignac number, because 3661400325 - 2³ = 3661400317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3661400292 and 3661400301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1857 + ... + 85593.

It is an arithmetic number, because the mean of its divisors is an integer number (140177412).

Almost surely, 2^3661400325 is an apocalyptic number.

It is an amenable number.

3661400325 is a deficient number, since it is larger than the sum of its proper divisors (3067115451).

3661400325 is a wasteful number, since it uses less digits than its factorization.

3661400325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83814 (or 83809 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 3661400325 is about 60509.5060713604. The cubic root of 3661400325 is about 1541.2830602746.

Adding to 3661400325 its reverse (5230041663), we get a palindrome (8891441988).

The spelling of 3661400325 in words is "three billion, six hundred sixty-one million, four hundred thousand, three hundred twenty-five".