3755218025 has 18 divisors (see below), whose sum is σ = 5042219130. Its totient is φ = 2773080960.

The previous prime is 3755218021. The next prime is 3755218037. The reversal of 3755218025 is 5208125573.

It can be written as a sum of positive squares in 9 ways, for example, as 3481944064 + 273273961 = 59008^2 + 16531^2 .

It is not a de Polignac number, because 3755218025 - 2² = 3755218021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3755218025.

It is not an unprimeable number, because it can be changed into a prime (3755218021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 440180 + ... + 448629.

It is an arithmetic number, because the mean of its divisors is an integer number (280123285).

Almost surely, 2^3755218025 is an apocalyptic number.

It is an amenable number.

3755218025 is a deficient number, since it is larger than the sum of its proper divisors (1287001105).

3755218025 is a wasteful number, since it uses less digits than its factorization.

3755218025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888845 (or 888827 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 3755218025 is about 61279.8337546701. The cubic root of 3755218025 is about 1554.3365241962.

The spelling of 3755218025 in words is "three billion, seven hundred fifty-five million, two hundred eighteen thousand, twenty-five".