75511085 has 16 divisors (see below), whose sum is σ = 98095536. Its totient is φ = 55469568.

The previous prime is 75511069. The next prime is 75511087. The reversal of 75511085 is 58011557.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6770404 + 68740681 = 2602^2 + 8291^2 .

It is a cyclic number.

It is not a de Polignac number, because 75511085 - 2⁴ = 75511069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75511087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9857 + ... + 15753.

It is an arithmetic number, because the mean of its divisors is an integer number (6130971).

Almost surely, 2^75511085 is an apocalyptic number.

It is an amenable number.

75511085 is a deficient number, since it is larger than the sum of its proper divisors (22584451).

75511085 is a wasteful number, since it uses less digits than its factorization.

75511085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6112.

The product of its (nonzero) digits is 7000, while the sum is 32.

The square root of 75511085 is about 8689.7114451517. The cubic root of 75511085 is about 422.6720889015.

The spelling of 75511085 in words is "seventy-five million, five hundred eleven thousand, eighty-five".