75538453 has 2 divisors, whose sum is σ = 75538454. Its totient is φ = 75538452.

The previous prime is 75538451. The next prime is 75538499. The reversal of 75538453 is 35483557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49252324 + 26286129 = 7018^2 + 5127^2 .

It is a cyclic number.

It is not a de Polignac number, because 75538453 - 2¹ = 75538451 is a prime.

Together with 75538451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75538451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37769226 + 37769227.

It is an arithmetic number, because the mean of its divisors is an integer number (37769227).

Almost surely, 2^75538453 is an apocalyptic number.

It is an amenable number.

75538453 is a deficient number, since it is larger than the sum of its proper divisors (1).

75538453 is an equidigital number, since it uses as much as digits as its factorization.

75538453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 40.

The square root of 75538453 is about 8691.2860383260. The cubic root of 75538453 is about 422.7231467141.

The spelling of 75538453 in words is "seventy-five million, five hundred thirty-eight thousand, four hundred fifty-three".