74555071 has 2 divisors, whose sum is σ = 74555072. Its totient is φ = 74555070.

The previous prime is 74555057. The next prime is 74555083. The reversal of 74555071 is 17055547.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74555071 - 2⁷ = 74554943 is a prime.

It is a super-2 number, since 2×74555071² = 11116917223630082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74555051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37277535 + 37277536.

It is an arithmetic number, because the mean of its divisors is an integer number (37277536).

Almost surely, 2^74555071 is an apocalyptic number.

74555071 is a deficient number, since it is larger than the sum of its proper divisors (1).

74555071 is an equidigital number, since it uses as much as digits as its factorization.

74555071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 74555071 is about 8634.5278388572. The cubic root of 74555071 is about 420.8807500167.

The spelling of 74555071 in words is "seventy-four million, five hundred fifty-five thousand, seventy-one".