75565151 has 2 divisors, whose sum is σ = 75565152. Its totient is φ = 75565150.

The previous prime is 75565141. The next prime is 75565157. The reversal of 75565151 is 15156557.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75565151 - 2¹⁰ = 75564127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75565157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37782575 + 37782576.

It is an arithmetic number, because the mean of its divisors is an integer number (37782576).

Almost surely, 2^75565151 is an apocalyptic number.

75565151 is a deficient number, since it is larger than the sum of its proper divisors (1).

75565151 is an equidigital number, since it uses as much as digits as its factorization.

75565151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26250, while the sum is 35.

The square root of 75565151 is about 8692.8218088259. The cubic root of 75565151 is about 422.7729426912.

The spelling of 75565151 in words is "seventy-five million, five hundred sixty-five thousand, one hundred fifty-one".