3725531 has 4 divisors (see below), whose sum is σ = 3731712. Its totient is φ = 3719352.

The previous prime is 3725521. The next prime is 3725551. The reversal of 3725531 is 1355273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1355273 = 37 ⋅36629.

It is a cyclic number.

It is not a de Polignac number, because 3725531 - 2¹⁰ = 3724507 is a prime.

It is a super-2 number, since 2×3725531² = 27759162463922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3725531.

It is not an unprimeable number, because it can be changed into a prime (3725521) 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 3 ways as a sum of consecutive naturals, for example, 2075 + ... + 3428.

It is an arithmetic number, because the mean of its divisors is an integer number (932928).

Almost surely, 2^3725531 is an apocalyptic number.

3725531 is a deficient number, since it is larger than the sum of its proper divisors (6181).

3725531 is an equidigital number, since it uses as much as digits as its factorization.

3725531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6180.

The product of its digits is 3150, while the sum is 26.

The square root of 3725531 is about 1930.1634645801. The cubic root of 3725531 is about 155.0229726616.

The spelling of 3725531 in words is "three million, seven hundred twenty-five thousand, five hundred thirty-one".