52561101 has 4 divisors (see below), whose sum is σ = 70081472. Its totient is φ = 35040732.

The previous prime is 52561097. The next prime is 52561111. The reversal of 52561101 is 10116525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52561101 - 2² = 52561097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52561111) 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, 8760181 + ... + 8760186.

It is an arithmetic number, because the mean of its divisors is an integer number (17520368).

Almost surely, 2^52561101 is an apocalyptic number.

It is an amenable number.

52561101 is a deficient number, since it is larger than the sum of its proper divisors (17520371).

52561101 is a wasteful number, since it uses less digits than its factorization.

52561101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17520370.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 52561101 is about 7249.9035165994. The cubic root of 52561101 is about 374.5888257712.

Adding to 52561101 its reverse (10116525), we get a palindrome (62677626).

The spelling of 52561101 in words is "fifty-two million, five hundred sixty-one thousand, one hundred one".