75868057 has 2 divisors, whose sum is σ = 75868058. Its totient is φ = 75868056.

The previous prime is 75868003. The next prime is 75868061. The reversal of 75868057 is 75086857.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68956416 + 6911641 = 8304^2 + 2629^2 .

It is an emirp because it is prime and its reverse (75086857) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75868057 - 2²³ = 67479449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75867998 and 75868016.

It is not a weakly prime, because it can be changed into another prime (75868157) 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, 37934028 + 37934029.

It is an arithmetic number, because the mean of its divisors is an integer number (37934029).

Almost surely, 2^75868057 is an apocalyptic number.

It is an amenable number.

75868057 is a deficient number, since it is larger than the sum of its proper divisors (1).

75868057 is an equidigital number, since it uses as much as digits as its factorization.

75868057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 75868057 is about 8710.2271497361. The cubic root of 75868057 is about 423.3370904386.

The spelling of 75868057 in words is "seventy-five million, eight hundred sixty-eight thousand, fifty-seven".