53611771 has 4 divisors (see below), whose sum is σ = 53647552. Its totient is φ = 53575992.

The previous prime is 53611769. The next prime is 53611861. The reversal of 53611771 is 17711635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17711635 = 5 ⋅3542327.

It is a cyclic number.

It is not a de Polignac number, because 53611771 - 2¹ = 53611769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53611721) 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, 15540 + ... + 18673.

It is an arithmetic number, because the mean of its divisors is an integer number (13411888).

Almost surely, 2^53611771 is an apocalyptic number.

53611771 is a deficient number, since it is larger than the sum of its proper divisors (35781).

53611771 is a wasteful number, since it uses less digits than its factorization.

53611771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35780.

The product of its digits is 4410, while the sum is 31.

The square root of 53611771 is about 7322.0059409973. The cubic root of 53611771 is about 377.0683245969.

The spelling of 53611771 in words is "fifty-three million, six hundred eleven thousand, seven hundred seventy-one".