70531775 has 12 divisors (see below), whose sum is σ = 88236912. Its totient is φ = 55923840.

The previous prime is 70531757. The next prime is 70531787. The reversal of 70531775 is 57713507.

It is not a de Polignac number, because 70531775 - 2¹⁶ = 70466239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9659 + ... + 15308.

It is an arithmetic number, because the mean of its divisors is an integer number (7353076).

Almost surely, 2^70531775 is an apocalyptic number.

70531775 is a deficient number, since it is larger than the sum of its proper divisors (17705137).

70531775 is a wasteful number, since it uses less digits than its factorization.

70531775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25090 (or 25085 counting only the distinct ones).

The product of its (nonzero) digits is 25725, while the sum is 35.

The square root of 70531775 is about 8398.3197724307. The cubic root of 70531775 is about 413.1695157419.

The spelling of 70531775 in words is "seventy million, five hundred thirty-one thousand, seven hundred seventy-five".