2532440221 has 8 divisors (see below), whose sum is σ = 2544134904. Its totient is φ = 2520760320.

The previous prime is 2532440219. The next prime is 2532440257. The reversal of 2532440221 is 1220442352.

It can be written as a sum of positive squares in 4 ways, for example, as 668791321 + 1863648900 = 25861^2 + 43170^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2532440221 - 2¹ = 2532440219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2532440201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478731 + ... + 483991.

It is an arithmetic number, because the mean of its divisors is an integer number (318016863).

Almost surely, 2^2532440221 is an apocalyptic number.

It is an amenable number.

2532440221 is a deficient number, since it is larger than the sum of its proper divisors (11694683).

2532440221 is a wasteful number, since it uses less digits than its factorization.

2532440221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7391.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2532440221 is about 50323.3566149954. The cubic root of 2532440221 is about 1363.0540185689.

Adding to 2532440221 its reverse (1220442352), we get a palindrome (3752882573).

The spelling of 2532440221 in words is "two billion, five hundred thirty-two million, four hundred forty thousand, two hundred twenty-one".