75542087 has 2 divisors, whose sum is σ = 75542088. Its totient is φ = 75542086.

The previous prime is 75542069. The next prime is 75542153. The reversal of 75542087 is 78024557.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75542087 - 2⁶ = 75542023 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75542087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75542017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37771043 + 37771044.

It is an arithmetic number, because the mean of its divisors is an integer number (37771044).

Almost surely, 2^75542087 is an apocalyptic number.

75542087 is a deficient number, since it is larger than the sum of its proper divisors (1).

75542087 is an equidigital number, since it uses as much as digits as its factorization.

75542087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 75542087 is about 8691.4950957819. The cubic root of 75542087 is about 422.7299253865.

The spelling of 75542087 in words is "seventy-five million, five hundred forty-two thousand, eighty-seven".