7240553 has 2 divisors, whose sum is σ = 7240554. Its totient is φ = 7240552.

The previous prime is 7240549. The next prime is 7240573. The reversal of 7240553 is 3550427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6416089 + 824464 = 2533^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 7240553 - 2² = 7240549 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7240523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3620276 + 3620277.

It is an arithmetic number, because the mean of its divisors is an integer number (3620277).

Almost surely, 2^7240553 is an apocalyptic number.

It is an amenable number.

7240553 is a deficient number, since it is larger than the sum of its proper divisors (1).

7240553 is an equidigital number, since it uses as much as digits as its factorization.

7240553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 7240553 is about 2690.8275678683. The cubic root of 7240553 is about 193.4597307295.

The spelling of 7240553 in words is "seven million, two hundred forty thousand, five hundred fifty-three".