56402 has 4 divisors (see below), whose sum is σ = 84606. Its totient is φ = 28200.

The previous prime is 56401. The next prime is 56417. The reversal of 56402 is 20465.

56402 is nontrivially palindromic in base 12.

56402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20465 = 5 ⋅4093.

It can be written as a sum of positive squares in only one way, i.e., 44521 + 11881 = 211^2 + 109^2 .

It is a plaindrome in base 14.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (56401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14099 + ... + 14102.

2⁵⁶⁴⁰² is an apocalyptic number.

56402 is a deficient number, since it is larger than the sum of its proper divisors (28204).

56402 is a wasteful number, since it uses less digits than its factorization.

56402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28203.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 56402 is about 237.4910524630. The cubic root of 56402 is about 38.3499528859.

Adding to 56402 its reverse (20465), we get a palindrome (76867).

Subtracting from 56402 its reverse (20465), we obtain a cube (35937 = 33³).

The spelling of 56402 in words is "fifty-six thousand, four hundred two".