7650553 has 2 divisors, whose sum is σ = 7650554. Its totient is φ = 7650552.

The previous prime is 7650551. The next prime is 7650563. The reversal of 7650553 is 3550567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7634169 + 16384 = 2763^2 + 128^2 .

It is an emirp because it is prime and its reverse (3550567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7650553 - 2¹ = 7650551 is a prime.

It is a super-2 number, since 2×7650553² = 117061922411618, which contains 22 as substring.

Together with 7650551, it forms a pair of twin primes.

It is equal to p₅₁₇₇₇₄ and since 7650553 and 517774 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (7650551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3825276 + 3825277.

It is an arithmetic number, because the mean of its divisors is an integer number (3825277).

Almost surely, 2^7650553 is an apocalyptic number.

It is an amenable number.

7650553 is a deficient number, since it is larger than the sum of its proper divisors (1).

7650553 is an equidigital number, since it uses as much as digits as its factorization.

7650553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 7650553 is about 2765.9633041673. The cubic root of 7650553 is about 197.0444813537.

The spelling of 7650553 in words is "seven million, six hundred fifty thousand, five hundred fifty-three".