75557983 has 2 divisors, whose sum is σ = 75557984. Its totient is φ = 75557982.

The previous prime is 75557969. The next prime is 75558011. The reversal of 75557983 is 38975557.

It is a weak prime.

It is an emirp because it is prime and its reverse (38975557) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75557983 - 2¹³ = 75549791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75557903) 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, 37778991 + 37778992.

It is an arithmetic number, because the mean of its divisors is an integer number (37778992).

Almost surely, 2^75557983 is an apocalyptic number.

75557983 is a deficient number, since it is larger than the sum of its proper divisors (1).

75557983 is an equidigital number, since it uses as much as digits as its factorization.

75557983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1323000, while the sum is 49.

The square root of 75557983 is about 8692.4095048496. The cubic root of 75557983 is about 422.7595743936.

The spelling of 75557983 in words is "seventy-five million, five hundred fifty-seven thousand, nine hundred eighty-three".