69240561 has 8 divisors (see below), whose sum is σ = 99422400. Its totient is φ = 42609552.

The previous prime is 69240559. The next prime is 69240583. The reversal of 69240561 is 16504296.

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

It is not a de Polignac number, because 69240561 - 2¹ = 69240559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69240361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887661 + ... + 887738.

It is an arithmetic number, because the mean of its divisors is an integer number (12427800).

Almost surely, 2^69240561 is an apocalyptic number.

It is an amenable number.

69240561 is a deficient number, since it is larger than the sum of its proper divisors (30181839).

69240561 is a wasteful number, since it uses less digits than its factorization.

69240561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775415.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 69240561 is about 8321.0913346748. The cubic root of 69240561 is about 410.6326955646.

The spelling of 69240561 in words is "sixty-nine million, two hundred forty thousand, five hundred sixty-one".