7555243 has 2 divisors, whose sum is σ = 7555244. Its totient is φ = 7555242.

The previous prime is 7555211. The next prime is 7555271. The reversal of 7555243 is 3425557.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7555243 - 2⁵ = 7555211 is a prime.

It is not a weakly prime, because it can be changed into another prime (7555043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3777621 + 3777622.

It is an arithmetic number, because the mean of its divisors is an integer number (3777622).

Almost surely, 2^7555243 is an apocalyptic number.

7555243 is a deficient number, since it is larger than the sum of its proper divisors (1).

7555243 is an equidigital number, since it uses as much as digits as its factorization.

7555243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 31.

The square root of 7555243 is about 2748.6802287643. The cubic root of 7555243 is about 196.2228047296. Note that the first 3 decimals are identical.

The spelling of 7555243 in words is "seven million, five hundred fifty-five thousand, two hundred forty-three".