431513220252500 has 60 divisors (see below), whose sum is σ = 943743665356800. Its totient is φ = 172585065804000.

The previous prime is 431513220252497. The next prime is 431513220252503. The reversal of 431513220252500 is 5252022315134.

It is an interprime number because it is at equal distance from previous prime (431513220252497) and next prime (431513220252503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431513220252503) 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 19 ways as a sum of consecutive naturals, for example, 11240621 + ... + 31454379.

It is an arithmetic number, because the mean of its divisors is an integer number (15729061089280).

Almost surely, 2^{431513220252500} is an apocalyptic number.

It is an amenable number.

431513220252500 is an abundant number, since it is smaller than the sum of its proper divisors (512230445104300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431513220252500 is a wasteful number, since it uses less digits than its factorization.

431513220252500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20222322 (or 20222305 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 431513220252500 its reverse (5252022315134), we get a palindrome (436765242567634).

The spelling of 431513220252500 in words is "four hundred thirty-one trillion, five hundred thirteen billion, two hundred twenty million, two hundred fifty-two thousand, five hundred".