3749357825 has 12 divisors (see below), whose sum is σ = 4659954348. Its totient is φ = 2992550400.

The previous prime is 3749357819. The next prime is 3749357839. The reversal of 3749357825 is 5287539473.

It is a happy number.

It is a Cunningham number, because it is equal to 61232²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 293916736 + 3455441089 = 17144^2 + 58783^2 .

It is not a de Polignac number, because 3749357825 - 2⁴ = 3749357809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 162356 + ... + 184005.

It is an arithmetic number, because the mean of its divisors is an integer number (388329529).

Almost surely, 2^3749357825 is an apocalyptic number.

It is an amenable number.

3749357825 is a deficient number, since it is larger than the sum of its proper divisors (910596523).

3749357825 is a wasteful number, since it uses less digits than its factorization.

3749357825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346804 (or 346799 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 53.

The square root of 3749357825 is about 61232.0000081657. Note that the first 5 decimals coincide. The cubic root of 3749357825 is about 1553.5275640460.

The spelling of 3749357825 in words is "three billion, seven hundred forty-nine million, three hundred fifty-seven thousand, eight hundred twenty-five".