3725507437 has 2 divisors, whose sum is σ = 3725507438. Its totient is φ = 3725507436.

The previous prime is 3725507431. The next prime is 3725507447. The reversal of 3725507437 is 7347055273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2637233316 + 1088274121 = 51354^2 + 32989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3725507437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3725507393 and 3725507402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3725507431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1862753718 + 1862753719.

It is an arithmetic number, because the mean of its divisors is an integer number (1862753719).

Almost surely, 2^3725507437 is an apocalyptic number.

It is an amenable number.

3725507437 is a deficient number, since it is larger than the sum of its proper divisors (1).

3725507437 is an equidigital number, since it uses as much as digits as its factorization.

3725507437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 617400, while the sum is 43.

The square root of 3725507437 is about 61036.9350229842. The cubic root of 3725507437 is about 1550.2264583449.

The spelling of 3725507437 in words is "three billion, seven hundred twenty-five million, five hundred seven thousand, four hundred thirty-seven".