52571761 has 4 divisors (see below), whose sum is σ = 57351024. Its totient is φ = 47792500.

The previous prime is 52571749. The next prime is 52571789. The reversal of 52571761 is 16717525.

It is a happy number.

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 52571761 - 2²⁵ = 19017329 is a prime.

It is a super-2 number, since 2×52571761² = 5527580109282242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52571711) 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, 2389615 + ... + 2389636.

It is an arithmetic number, because the mean of its divisors is an integer number (14337756).

Almost surely, 2^52571761 is an apocalyptic number.

It is an amenable number.

52571761 is a deficient number, since it is larger than the sum of its proper divisors (4779263).

52571761 is a wasteful number, since it uses less digits than its factorization.

52571761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779262.

The product of its digits is 14700, while the sum is 34.

The square root of 52571761 is about 7250.6386615249. The cubic root of 52571761 is about 374.6141477101.

The spelling of 52571761 in words is "fifty-two million, five hundred seventy-one thousand, seven hundred sixty-one".