7249553 has 2 divisors, whose sum is σ = 7249554. Its totient is φ = 7249552.

The previous prime is 7249549. The next prime is 7249573. The reversal of 7249553 is 3559427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7219969 + 29584 = 2687^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 7249553 - 2² = 7249549 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7249513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3624776 + 3624777.

It is an arithmetic number, because the mean of its divisors is an integer number (3624777).

Almost surely, 2^7249553 is an apocalyptic number.

It is an amenable number.

7249553 is a deficient number, since it is larger than the sum of its proper divisors (1).

7249553 is an equidigital number, since it uses as much as digits as its factorization.

7249553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 35.

The square root of 7249553 is about 2692.4993964716. The cubic root of 7249553 is about 193.5398542902.

The spelling of 7249553 in words is "seven million, two hundred forty-nine thousand, five hundred fifty-three".