69732561 has 8 divisors (see below), whose sum is σ = 93383680. Its totient is φ = 46284912.

The previous prime is 69732539. The next prime is 69732571. The reversal of 69732561 is 16523796.

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

It is not a de Polignac number, because 69732561 - 2⁶ = 69732497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69732571) 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, 50065 + ... + 51438.

It is an arithmetic number, because the mean of its divisors is an integer number (11672960).

Almost surely, 2^69732561 is an apocalyptic number.

It is an amenable number.

69732561 is a deficient number, since it is larger than the sum of its proper divisors (23651119).

69732561 is a wasteful number, since it uses less digits than its factorization.

69732561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101735.

The product of its digits is 68040, while the sum is 39.

The square root of 69732561 is about 8350.6024333577. The cubic root of 69732561 is about 411.6030066145.

The spelling of 69732561 in words is "sixty-nine million, seven hundred thirty-two thousand, five hundred sixty-one".