2536641 has 6 divisors (see below), whose sum is σ = 3664050. Its totient is φ = 1691088.

The previous prime is 2536631. The next prime is 2536643. The reversal of 2536641 is 1466352.

It can be written as a sum of positive squares in only one way, i.e., 2433600 + 103041 = 1560^2 + 321^2 .

It is not a de Polignac number, because 2536641 - 2⁶ = 2536577 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 5³ + 3¹¹ + 6² + 6² + 4⁹ + 1 .

It is not an unprimeable number, because it can be changed into a prime (2536643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140916 + ... + 140933.

It is an arithmetic number, because the mean of its divisors is an integer number (610675).

2^2536641 is an apocalyptic number.

It is an amenable number.

2536641 is a deficient number, since it is larger than the sum of its proper divisors (1127409).

2536641 is a wasteful number, since it uses less digits than its factorization.

2536641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281855 (or 281852 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2536641 is about 1592.6835843946. The cubic root of 2536641 is about 136.3807274336.

The spelling of 2536641 in words is "two million, five hundred thirty-six thousand, six hundred forty-one".