3625020305 has 4 divisors (see below), whose sum is σ = 4350024372. Its totient is φ = 2900016240.

The previous prime is 3625020293. The next prime is 3625020439. The reversal of 3625020305 is 5030205263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5030205263 = 173 ⋅29076331.

It can be written as a sum of positive squares in 2 ways, for example, as 2785411729 + 839608576 = 52777^2 + 28976^2 .

It is not a de Polignac number, because 3625020305 - 2¹² = 3625016209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362502026 + ... + 362502035.

It is an arithmetic number, because the mean of its divisors is an integer number (1087506093).

Almost surely, 2^3625020305 is an apocalyptic number.

It is an amenable number.

3625020305 is a deficient number, since it is larger than the sum of its proper divisors (725004067).

3625020305 is an equidigital number, since it uses as much as digits as its factorization.

3625020305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725004066.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 3625020305 is about 60208.1415175722. The cubic root of 3625020305 is about 1536.1612810396.

Adding to 3625020305 its reverse (5030205263), we get a palindrome (8655225568).

The spelling of 3625020305 in words is "three billion, six hundred twenty-five million, twenty thousand, three hundred five".