9952431557 has 2 divisors, whose sum is σ = 9952431558. Its totient is φ = 9952431556.

The previous prime is 9952431551. The next prime is 9952431583. The reversal of 9952431557 is 7551342599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8493649921 + 1458781636 = 92161^2 + 38194^2 .

It is a cyclic number.

It is not a de Polignac number, because 9952431557 - 2³⁰ = 8878689733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9952431551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4976215778 + 4976215779.

It is an arithmetic number, because the mean of its divisors is an integer number (4976215779).

Almost surely, 2^9952431557 is an apocalyptic number.

It is an amenable number.

9952431557 is a deficient number, since it is larger than the sum of its proper divisors (1).

9952431557 is an equidigital number, since it uses as much as digits as its factorization.

9952431557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1701000, while the sum is 50.

The square root of 9952431557 is about 99761.8742656733. The cubic root of 9952431557 is about 2151.0131555894.

The spelling of 9952431557 in words is "nine billion, nine hundred fifty-two million, four hundred thirty-one thousand, five hundred fifty-seven".