53668837 has 4 divisors (see below), whose sum is σ = 54548716. Its totient is φ = 52788960.

The previous prime is 53668831. The next prime is 53668841. The reversal of 53668837 is 73886635.

53668837 is nontrivially palindromic in base 3.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28206721 + 25462116 = 5311^2 + 5046^2 .

It is a cyclic number.

It is not a de Polignac number, because 53668837 - 2²³ = 45280229 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 (53668831) 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, 439848 + ... + 439969.

It is an arithmetic number, because the mean of its divisors is an integer number (13637179).

Almost surely, 2^53668837 is an apocalyptic number.

It is an amenable number.

53668837 is a deficient number, since it is larger than the sum of its proper divisors (879879).

53668837 is an equidigital number, since it uses as much as digits as its factorization.

53668837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879878.

The product of its digits is 725760, while the sum is 46.

The square root of 53668837 is about 7325.9017874935. The cubic root of 53668837 is about 377.2020648209.

The spelling of 53668837 in words is "fifty-three million, six hundred sixty-eight thousand, eight hundred thirty-seven".