9953557 has 2 divisors, whose sum is σ = 9953558. Its totient is φ = 9953556.

The previous prime is 9953539. The next prime is 9953569. The reversal of 9953557 is 7553599.

9953557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8678916 + 1274641 = 2946^2 + 1129^2 .

It is an emirp because it is prime and its reverse (7553599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9953557 - 2⁷ = 9953429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9953507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4976778 + 4976779.

It is an arithmetic number, because the mean of its divisors is an integer number (4976779).

Almost surely, 2^9953557 is an apocalyptic number.

It is an amenable number.

9953557 is a deficient number, since it is larger than the sum of its proper divisors (1).

9953557 is an equidigital number, since it uses as much as digits as its factorization.

9953557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 212625, while the sum is 43.

The square root of 9953557 is about 3154.9258311409. The cubic root of 9953557 is about 215.1094232977.

The spelling of 9953557 in words is "nine million, nine hundred fifty-three thousand, five hundred fifty-seven".