52010561 has 4 divisors (see below), whose sum is σ = 52274772. Its totient is φ = 51746352.

The previous prime is 52010557. The next prime is 52010579. The reversal of 52010561 is 16501025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25806400 + 26204161 = 5080^2 + 5119^2 .

It is a cyclic number.

It is not a de Polignac number, because 52010561 - 2² = 52010557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52010501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131810 + ... + 132203.

It is an arithmetic number, because the mean of its divisors is an integer number (13068693).

Almost surely, 2^52010561 is an apocalyptic number.

It is an amenable number.

52010561 is a deficient number, since it is larger than the sum of its proper divisors (264211).

52010561 is a wasteful number, since it uses less digits than its factorization.

52010561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264210.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 52010561 is about 7211.8347873478. The cubic root of 52010561 is about 373.2763825933.

Adding to 52010561 its reverse (16501025), we get a palindrome (68511586).

The spelling of 52010561 in words is "fifty-two million, ten thousand, five hundred sixty-one".