70520565 has 8 divisors (see below), whose sum is σ = 112832928. Its totient is φ = 37610960.

The previous prime is 70520563. The next prime is 70520579. The reversal of 70520565 is 56502507.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70520565 - 2¹ = 70520563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70520561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2350671 + ... + 2350700.

It is an arithmetic number, because the mean of its divisors is an integer number (14104116).

Almost surely, 2^70520565 is an apocalyptic number.

It is an amenable number.

70520565 is a deficient number, since it is larger than the sum of its proper divisors (42312363).

70520565 is a wasteful number, since it uses less digits than its factorization.

70520565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701379.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 70520565 is about 8397.6523505084. The cubic root of 70520565 is about 413.1476254867.

The spelling of 70520565 in words is "seventy million, five hundred twenty thousand, five hundred sixty-five".