75505070 has 16 divisors (see below), whose sum is σ = 136045008. Its totient is φ = 30171840.

The previous prime is 75505061. The next prime is 75505093. The reversal of 75505070 is 7050557.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8690 + ... + 15050.

It is an arithmetic number, because the mean of its divisors is an integer number (8502813).

Almost surely, 2^75505070 is an apocalyptic number.

75505070 is a deficient number, since it is larger than the sum of its proper divisors (60539938).

75505070 is a wasteful number, since it uses less digits than its factorization.

75505070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7555.

The product of its (nonzero) digits is 6125, while the sum is 29.

The square root of 75505070 is about 8689.3653393099. The cubic root of 75505070 is about 422.6608656481.

The spelling of 75505070 in words is "seventy-five million, five hundred five thousand, seventy".