75505127 has 2 divisors, whose sum is σ = 75505128. Its totient is φ = 75505126.

The previous prime is 75505121. The next prime is 75505147. The reversal of 75505127 is 72150557.

It is a weak prime.

It is an emirp because it is prime and its reverse (72150557) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75505127 - 2¹⁰ = 75504103 is a prime.

It is a super-2 number, since 2×75505127² = 11402048406572258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75505093 and 75505102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75505121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37752563 + 37752564.

It is an arithmetic number, because the mean of its divisors is an integer number (37752564).

Almost surely, 2^75505127 is an apocalyptic number.

75505127 is a deficient number, since it is larger than the sum of its proper divisors (1).

75505127 is an equidigital number, since it uses as much as digits as its factorization.

75505127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 75505127 is about 8689.3686191806. The cubic root of 75505127 is about 422.6609720059.

The spelling of 75505127 in words is "seventy-five million, five hundred five thousand, one hundred twenty-seven".