70567561 has 8 divisors (see below), whose sum is σ = 74904480. Its totient is φ = 66251328.

The previous prime is 70567537. The next prime is 70567571. The reversal of 70567561 is 16576507.

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

It is a cyclic number.

It is not a de Polignac number, because 70567561 - 2⁵ = 70567529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70567561.

It is not an unprimeable number, because it can be changed into a prime (70567531) by changing a digit.

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, 2170 + ... + 12076.

It is an arithmetic number, because the mean of its divisors is an integer number (9363060).

Almost surely, 2^70567561 is an apocalyptic number.

It is an amenable number.

70567561 is a deficient number, since it is larger than the sum of its proper divisors (4336919).

70567561 is a wasteful number, since it uses less digits than its factorization.

70567561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10343.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 70567561 is about 8400.4500474677. The cubic root of 70567561 is about 413.2393811057.

The spelling of 70567561 in words is "seventy million, five hundred sixty-seven thousand, five hundred sixty-one".