52561577 has 4 divisors (see below), whose sum is σ = 52810896. Its totient is φ = 52312260.

The previous prime is 52561573. The next prime is 52561583. The reversal of 52561577 is 77516525.

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 a cyclic number.

It is not a de Polignac number, because 52561577 - 2² = 52561573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52561577.

It is not an unprimeable number, because it can be changed into a prime (52561573) 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, 124343 + ... + 124764.

It is an arithmetic number, because the mean of its divisors is an integer number (13202724).

Almost surely, 2^52561577 is an apocalyptic number.

It is an amenable number.

52561577 is a deficient number, since it is larger than the sum of its proper divisors (249319).

52561577 is a wasteful number, since it uses less digits than its factorization.

52561577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249318.

The product of its digits is 73500, while the sum is 38.

The square root of 52561577 is about 7249.9363445481. The cubic root of 52561577 is about 374.5899565425.

The spelling of 52561577 in words is "fifty-two million, five hundred sixty-one thousand, five hundred seventy-seven".