53402 has 4 divisors (see below), whose sum is σ = 80106. Its totient is φ = 26700.

The previous prime is 53401. The next prime is 53407. The reversal of 53402 is 20435.

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

It can be written as a sum of positive squares in only one way, i.e., 52441 + 961 = 229^2 + 31^2 .

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (53401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13349 + ... + 13352.

2⁵³⁴⁰² is an apocalyptic number.

53402 is a deficient number, since it is larger than the sum of its proper divisors (26704).

53402 is a wasteful number, since it uses less digits than its factorization.

53402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26703.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 53402 is about 231.0887275485. The cubic root of 53402 is about 37.6575886791.

Adding to 53402 its reverse (20435), we get a palindrome (73837).

The spelling of 53402 in words is "fifty-three thousand, four hundred two".