75522379 has 2 divisors, whose sum is σ = 75522380. Its totient is φ = 75522378.

The previous prime is 75522371. The next prime is 75522383. The reversal of 75522379 is 97322557.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75522379 - 2³ = 75522371 is a prime.

It is not a weakly prime, because it can be changed into another prime (75522371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37761189 + 37761190.

It is an arithmetic number, because the mean of its divisors is an integer number (37761190).

Almost surely, 2^75522379 is an apocalyptic number.

75522379 is a deficient number, since it is larger than the sum of its proper divisors (1).

75522379 is an equidigital number, since it uses as much as digits as its factorization.

75522379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 40.

The square root of 75522379 is about 8690.3612698207. The cubic root of 75522379 is about 422.6931605123.

The spelling of 75522379 in words is "seventy-five million, five hundred twenty-two thousand, three hundred seventy-nine".