52561601 has 8 divisors (see below), whose sum is σ = 56738880. Its totient is φ = 48542032.

The previous prime is 52561591. The next prime is 52561627. The reversal of 52561601 is 10616525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52561601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52561801) 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, 38735 + ... + 40068.

It is an arithmetic number, because the mean of its divisors is an integer number (7092360).

Almost surely, 2^52561601 is an apocalyptic number.

It is an amenable number.

52561601 is a deficient number, since it is larger than the sum of its proper divisors (4177279).

52561601 is a wasteful number, since it uses less digits than its factorization.

52561601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78855.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 52561601 is about 7249.9379997349. The cubic root of 52561601 is about 374.5900135560.

It can be divided in two parts, 525 and 61601, that added together give a palindrome (62126).

The spelling of 52561601 in words is "fifty-two million, five hundred sixty-one thousand, six hundred one".