53327661 has 16 divisors (see below), whose sum is σ = 75403200. Its totient is φ = 33429888.

The previous prime is 53327653. The next prime is 53327663. The reversal of 53327661 is 16672335.

It is not a de Polignac number, because 53327661 - 2³ = 53327653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53327663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4395 + ... + 11223.

It is an arithmetic number, because the mean of its divisors is an integer number (4712700).

Almost surely, 2^53327661 is an apocalyptic number.

It is an amenable number.

53327661 is a deficient number, since it is larger than the sum of its proper divisors (22075539).

53327661 is a wasteful number, since it uses less digits than its factorization.

53327661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6988.

The product of its digits is 22680, while the sum is 33.

The square root of 53327661 is about 7302.5790649605. The cubic root of 53327661 is about 376.4010664042.

Adding to 53327661 its reverse (16672335), we get a palindrome (69999996).

The spelling of 53327661 in words is "fifty-three million, three hundred twenty-seven thousand, six hundred sixty-one".