9557953481 has 2 divisors, whose sum is σ = 9557953482. Its totient is φ = 9557953480.

The previous prime is 9557953459. The next prime is 9557953499. The reversal of 9557953481 is 1843597559.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6461587456 + 3096366025 = 80384^2 + 55645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9557953481 is a prime.

It is a super-2 number, since 2×9557953481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9557953411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4778976740 + 4778976741.

It is an arithmetic number, because the mean of its divisors is an integer number (4778976741).

Almost surely, 2^9557953481 is an apocalyptic number.

It is an amenable number.

9557953481 is a deficient number, since it is larger than the sum of its proper divisors (1).

9557953481 is an equidigital number, since it uses as much as digits as its factorization.

9557953481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804000, while the sum is 56.

The square root of 9557953481 is about 97764.7865082311. The cubic root of 9557953481 is about 2122.2097435729.

The spelling of 9557953481 in words is "nine billion, five hundred fifty-seven million, nine hundred fifty-three thousand, four hundred eighty-one".