3525641 has 4 divisors (see below), whose sum is σ = 4029312. Its totient is φ = 3021972.

The previous prime is 3525637. The next prime is 3525671. The reversal of 3525641 is 1465253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3525641 - 2² = 3525637 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3525641.

It is not an unprimeable number, because it can be changed into a prime (3525671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251825 + ... + 251838.

It is an arithmetic number, because the mean of its divisors is an integer number (1007328).

Almost surely, 2^3525641 is an apocalyptic number.

It is an amenable number.

3525641 is a deficient number, since it is larger than the sum of its proper divisors (503671).

3525641 is an equidigital number, since it uses as much as digits as its factorization.

3525641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503670.

The product of its digits is 3600, while the sum is 26.

The square root of 3525641 is about 1877.6690336691. The cubic root of 3525641 is about 152.1993143601.

The spelling of 3525641 in words is "three million, five hundred twenty-five thousand, six hundred forty-one".