70545567 has 4 divisors (see below), whose sum is σ = 94060760. Its totient is φ = 47030376.

The previous prime is 70545557. The next prime is 70545599. The reversal of 70545567 is 76554507.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 70545567 - 2²⁰ = 69496991 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 (70545557) 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 3 ways as a sum of consecutive naturals, for example, 11757592 + ... + 11757597.

It is an arithmetic number, because the mean of its divisors is an integer number (23515190).

Almost surely, 2^70545567 is an apocalyptic number.

70545567 is a deficient number, since it is larger than the sum of its proper divisors (23515193).

70545567 is a wasteful number, since it uses less digits than its factorization.

70545567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23515192.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 70545567 is about 8399.1408489202. The cubic root of 70545567 is about 413.1964447989.

It can be divided in two parts, 7054 and 5567, that added together give a palindrome (12621).

The spelling of 70545567 in words is "seventy million, five hundred forty-five thousand, five hundred sixty-seven".