9903525431 has 2 divisors, whose sum is σ = 9903525432. Its totient is φ = 9903525430.

The previous prime is 9903525421. The next prime is 9903525517. The reversal of 9903525431 is 1345253099.

It is a weak prime.

It is an emirp because it is prime and its reverse (1345253099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9903525431 - 2⁶ = 9903525367 is a prime.

It is a super-2 number, since 2×9903525431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9903525421) 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 as a sum of consecutive naturals, namely, 4951762715 + 4951762716.

It is an arithmetic number, because the mean of its divisors is an integer number (4951762716).

Almost surely, 2^9903525431 is an apocalyptic number.

9903525431 is a deficient number, since it is larger than the sum of its proper divisors (1).

9903525431 is an equidigital number, since it uses as much as digits as its factorization.

9903525431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 9903525431 is about 99516.4580911117. The cubic root of 9903525431 is about 2147.4840178370.

The spelling of 9903525431 in words is "nine billion, nine hundred three million, five hundred twenty-five thousand, four hundred thirty-one".