1001355325 has 6 divisors (see below), whose sum is σ = 1241680634. Its totient is φ = 801084240.

The previous prime is 1001355293. The next prime is 1001355343. The reversal of 1001355325 is 5235531001.

It can be written as a sum of positive squares in 3 ways, for example, as 169494361 + 831860964 = 13019^2 + 28842^2 .

It is not a de Polignac number, because 1001355325 - 2⁵ = 1001355293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 40054213 = 1001355325 / (1 + 0 + 0 + 1 + 3 + 5 + 5 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001355325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20027082 + ... + 20027131.

Almost surely, 2^1001355325 is an apocalyptic number.

It is an amenable number.

1001355325 is a deficient number, since it is larger than the sum of its proper divisors (240325309).

1001355325 is an equidigital number, since it uses as much as digits as its factorization.

1001355325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40054223 (or 40054218 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 1001355325 is about 31644.1989154410. The cubic root of 1001355325 is about 1000.4515710529.

Adding to 1001355325 its reverse (5235531001), we get a palindrome (6236886326).

The spelling of 1001355325 in words is "one billion, one million, three hundred fifty-five thousand, three hundred twenty-five".