24640355252 has 6 divisors (see below), whose sum is σ = 43120621698. Its totient is φ = 12320177624.

The previous prime is 24640355251. The next prime is 24640355263. The reversal of 24640355252 is 25255304642.

It can be written as a sum of positive squares in only one way, i.e., 19014755236 + 5625600016 = 137894^2 + 75004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24640355251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3080044403 + ... + 3080044410.

It is an arithmetic number, because the mean of its divisors is an integer number (7186770283).

Almost surely, 2^24640355252 is an apocalyptic number.

It is an amenable number.

24640355252 is a deficient number, since it is larger than the sum of its proper divisors (18480266446).

24640355252 is a wasteful number, since it uses less digits than its factorization.

24640355252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160088817 (or 6160088815 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 24640355252 its reverse (25255304642), we get a palindrome (49895659894).

The spelling of 24640355252 in words is "twenty-four billion, six hundred forty million, three hundred fifty-five thousand, two hundred fifty-two".