75565753 has 2 divisors, whose sum is σ = 75565754. Its totient is φ = 75565752.

The previous prime is 75565751. The next prime is 75565759. The reversal of 75565753 is 35756557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74425129 + 1140624 = 8627^2 + 1068^2 .

It is an emirp because it is prime and its reverse (35756557) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75565753 - 2¹ = 75565751 is a prime.

Together with 75565751, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (75565751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37782876 + 37782877.

It is an arithmetic number, because the mean of its divisors is an integer number (37782877).

Almost surely, 2^75565753 is an apocalyptic number.

It is an amenable number.

75565753 is a deficient number, since it is larger than the sum of its proper divisors (1).

75565753 is an equidigital number, since it uses as much as digits as its factorization.

75565753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 551250, while the sum is 43.

The square root of 75565753 is about 8692.8564350276. The cubic root of 75565753 is about 422.7740653808.

The spelling of 75565753 in words is "seventy-five million, five hundred sixty-five thousand, seven hundred fifty-three".