201321625 has 64 divisors (see below), whose sum is σ = 284544000. Its totient is φ = 141523200.

The previous prime is 201321619. The next prime is 201321689. The reversal of 201321625 is 526123102.

It is a de Polignac number, because none of the positive numbers 2^k-201321625 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201321596 and 201321605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2548336 + ... + 2548414.

It is an arithmetic number, because the mean of its divisors is an integer number (4446000).

Almost surely, 2^201321625 is an apocalyptic number.

201321625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201321625 is a deficient number, since it is larger than the sum of its proper divisors (83222375).

201321625 is a wasteful number, since it uses less digits than its factorization.

201321625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 201321625 is about 14188.7851840811. The cubic root of 201321625 is about 586.0888722390.

Adding to 201321625 its reverse (526123102), we get a palindrome (727444727).

The spelling of 201321625 in words is "two hundred one million, three hundred twenty-one thousand, six hundred twenty-five".