641413553 has 32 divisors (see below), whose sum is σ = 764225280. Its totient is φ = 531712000.

The previous prime is 641413523. The next prime is 641413583. The reversal of 641413553 is 355314146.

641413553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (641413523) and next prime (641413583).

It is a cyclic number.

It is not a de Polignac number, because 641413553 - 2¹⁶ = 641348017 is a prime.

It is a super-3 number, since 3×641413553³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641413523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2062268 + ... + 2062578.

It is an arithmetic number, because the mean of its divisors is an integer number (23882040).

Almost surely, 2^641413553 is an apocalyptic number.

It is an amenable number.

641413553 is a deficient number, since it is larger than the sum of its proper divisors (122811727).

641413553 is a wasteful number, since it uses less digits than its factorization.

641413553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its digits is 21600, while the sum is 32.

The square root of 641413553 is about 25326.1436661802. The cubic root of 641413553 is about 862.4078694002.

Adding to 641413553 its reverse (355314146), we get a palindrome (996727699).

The spelling of 641413553 in words is "six hundred forty-one million, four hundred thirteen thousand, five hundred fifty-three".