70559591 has 2 divisors, whose sum is σ = 70559592. Its totient is φ = 70559590.

The previous prime is 70559579. The next prime is 70559609. The reversal of 70559591 is 19595507.

It is a weak prime.

It is an emirp because it is prime and its reverse (19595507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70559591 - 2⁶ = 70559527 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70559491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35279795 + 35279796.

It is an arithmetic number, because the mean of its divisors is an integer number (35279796).

Almost surely, 2^70559591 is an apocalyptic number.

70559591 is a deficient number, since it is larger than the sum of its proper divisors (1).

70559591 is an equidigital number, since it uses as much as digits as its factorization.

70559591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70875, while the sum is 41.

The square root of 70559591 is about 8399.9756547266. The cubic root of 70559591 is about 413.2238232403.

The spelling of 70559591 in words is "seventy million, five hundred fifty-nine thousand, five hundred ninety-one".