3625131105 has 28 divisors (see below), whose sum is σ = 6522258900. Its totient is φ = 1933401312.

The previous prime is 3625131101. The next prime is 3625131113. The reversal of 3625131105 is 5011315263.

3625131105 is a `hidden beast` number, since 3 + 625 + 1 + 31 + 1 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1056770064 + 2568361041 = 32508^2 + 50679^2 .

It is not a de Polignac number, because 3625131105 - 2² = 3625131101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3625131101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 493630 + ... + 500919.

Almost surely, 2^3625131105 is an apocalyptic number.

It is an amenable number.

3625131105 is a deficient number, since it is larger than the sum of its proper divisors (2897127795).

3625131105 is an frugal number, since it uses more digits than its factorization.

3625131105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994572 (or 994557 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 3625131105 is about 60209.0616518809. The cubic root of 3625131105 is about 1536.1769319805.

Adding to 3625131105 its reverse (5011315263), we get a palindrome (8636446368).

The spelling of 3625131105 in words is "three billion, six hundred twenty-five million, one hundred thirty-one thousand, one hundred five".