69061561 has 8 divisors (see below), whose sum is σ = 73573920. Its totient is φ = 64636992.

The previous prime is 69061547. The next prime is 69061567. The reversal of 69061561 is 16516096.

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 69061561 - 2⁵ = 69061529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69061567) 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, 20320 + ... + 23473.

It is an arithmetic number, because the mean of its divisors is an integer number (9196740).

Almost surely, 2^69061561 is an apocalyptic number.

It is an amenable number.

69061561 is a deficient number, since it is larger than the sum of its proper divisors (4512359).

69061561 is a wasteful number, since it uses less digits than its factorization.

69061561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43895.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 69061561 is about 8310.3285735282. The cubic root of 69061561 is about 410.2785356977.

The spelling of 69061561 in words is "sixty-nine million, sixty-one thousand, five hundred sixty-one".