75775541 has 2 divisors, whose sum is σ = 75775542. Its totient is φ = 75775540.

The previous prime is 75775517. The next prime is 75775549. The reversal of 75775541 is 14557757.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39112516 + 36663025 = 6254^2 + 6055^2 .

It is a cyclic number.

It is not a de Polignac number, because 75775541 - 2¹⁸ = 75513397 is a prime.

It is a super-2 number, since 2×75775541² = 11483865227685362, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75775549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37887770 + 37887771.

It is an arithmetic number, because the mean of its divisors is an integer number (37887771).

Almost surely, 2^75775541 is an apocalyptic number.

It is an amenable number.

75775541 is a deficient number, since it is larger than the sum of its proper divisors (1).

75775541 is an equidigital number, since it uses as much as digits as its factorization.

75775541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 171500, while the sum is 41.

The square root of 75775541 is about 8704.9147612139. The cubic root of 75775541 is about 423.1649433960.

The spelling of 75775541 in words is "seventy-five million, seven hundred seventy-five thousand, five hundred forty-one".