7995553 has 2 divisors, whose sum is σ = 7995554. Its totient is φ = 7995552.

The previous prime is 7995529. The next prime is 7995557. The reversal of 7995553 is 3555997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7907344 + 88209 = 2812^2 + 297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7995553 is a prime.

It is not a weakly prime, because it can be changed into another prime (7995557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3997776 + 3997777.

It is an arithmetic number, because the mean of its divisors is an integer number (3997777).

Almost surely, 2^7995553 is an apocalyptic number.

It is an amenable number.

7995553 is a deficient number, since it is larger than the sum of its proper divisors (1).

7995553 is an equidigital number, since it uses as much as digits as its factorization.

7995553 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 7995553 is about 2827.6408895049. The cubic root of 7995553 is about 199.9629347979.

It can be divided in two parts, 79955 and 53, that added together give a palindrome (80008).

The spelling of 7995553 in words is "seven million, nine hundred ninety-five thousand, five hundred fifty-three".