53642133 has 24 divisors (see below), whose sum is σ = 79312896. Its totient is φ = 34927200.

The previous prime is 53642131. The next prime is 53642167. The reversal of 53642133 is 33124635.

It is a happy number.

53642133 is a `hidden beast` number, since 5 + 3 + 642 + 13 + 3 = 666.

It is not a de Polignac number, because 53642133 - 2¹ = 53642131 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53642097 and 53642106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53642131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80823 + ... + 81483.

It is an arithmetic number, because the mean of its divisors is an integer number (3304704).

Almost surely, 2^53642133 is an apocalyptic number.

It is an amenable number.

53642133 is a deficient number, since it is larger than the sum of its proper divisors (25670763).

53642133 is a wasteful number, since it uses less digits than its factorization.

53642133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 862 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 53642133 is about 7324.0789864665. The cubic root of 53642133 is about 377.1394929723.

Adding to 53642133 its reverse (33124635), we get a palindrome (86766768).

The spelling of 53642133 in words is "fifty-three million, six hundred forty-two thousand, one hundred thirty-three".