2732521 has 16 divisors (see below), whose sum is σ = 3136320. Its totient is φ = 2358720.

The previous prime is 2732519. The next prime is 2732537. The reversal of 2732521 is 1252372.

It is a cyclic number.

It is not a de Polignac number, because 2732521 - 2¹ = 2732519 is a prime.

2732521 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2732492 and 2732501.

It is not an unprimeable number, because it can be changed into a prime (2732501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25015 + ... + 25123.

It is an arithmetic number, because the mean of its divisors is an integer number (196020).

2^2732521 is an apocalyptic number.

It is an amenable number.

2732521 is a deficient number, since it is larger than the sum of its proper divisors (403799).

2732521 is a wasteful number, since it uses less digits than its factorization.

2732521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216.

The product of its digits is 840, while the sum is 22.

The square root of 2732521 is about 1653.0338774508. The cubic root of 2732521 is about 139.8045060537.

Adding to 2732521 its reverse (1252372), we get a palindrome (3984893).

The spelling of 2732521 in words is "two million, seven hundred thirty-two thousand, five hundred twenty-one".