75806057 has 2 divisors, whose sum is σ = 75806058. Its totient is φ = 75806056.

The previous prime is 75806053. The next prime is 75806069. The reversal of 75806057 is 75060857.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56190016 + 19616041 = 7496^2 + 4429^2 .

It is a cyclic number.

It is not a de Polignac number, because 75806057 - 2² = 75806053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75806057.

It is not a weakly prime, because it can be changed into another prime (75806051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37903028 + 37903029.

It is an arithmetic number, because the mean of its divisors is an integer number (37903029).

Almost surely, 2^75806057 is an apocalyptic number.

It is an amenable number.

75806057 is a deficient number, since it is larger than the sum of its proper divisors (1).

75806057 is an equidigital number, since it uses as much as digits as its factorization.

75806057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 75806057 is about 8706.6673876978. The cubic root of 75806057 is about 423.2217408276.

The spelling of 75806057 in words is "seventy-five million, eight hundred six thousand, fifty-seven".