53160661 has 4 divisors (see below), whose sum is σ = 53428000. Its totient is φ = 52893324.

The previous prime is 53160623. The next prime is 53160677. The reversal of 53160661 is 16606135.

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 53160661 - 2⁷ = 53160533 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 (53160761) 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, 133371 + ... + 133768.

It is an arithmetic number, because the mean of its divisors is an integer number (13357000).

Almost surely, 2^53160661 is an apocalyptic number.

It is an amenable number.

53160661 is a deficient number, since it is larger than the sum of its proper divisors (267339).

53160661 is a wasteful number, since it uses less digits than its factorization.

53160661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267338.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 53160661 is about 7291.1357825787. The cubic root of 53160661 is about 376.0077451438.

Adding to 53160661 its reverse (16606135), we get a palindrome (69766796).

The spelling of 53160661 in words is "fifty-three million, one hundred sixty thousand, six hundred sixty-one".