75666263 has 2 divisors, whose sum is σ = 75666264. Its totient is φ = 75666262.

The previous prime is 75666233. The next prime is 75666277. The reversal of 75666263 is 36266657.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75666263 - 2⁸ = 75666007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75666263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75666233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37833131 + 37833132.

It is an arithmetic number, because the mean of its divisors is an integer number (37833132).

Almost surely, 2^75666263 is an apocalyptic number.

75666263 is a deficient number, since it is larger than the sum of its proper divisors (1).

75666263 is an equidigital number, since it uses as much as digits as its factorization.

75666263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 41.

The square root of 75666263 is about 8698.6356976252. The cubic root of 75666263 is about 422.9614262489.

The spelling of 75666263 in words is "seventy-five million, six hundred sixty-six thousand, two hundred sixty-three".