250402 has 4 divisors (see below), whose sum is σ = 375606. Its totient is φ = 125200.

The previous prime is 250361. The next prime is 250403. The reversal of 250402 is 204052.

It is a happy number.

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., 221841 + 28561 = 471^2 + 169^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (250403) by changing a digit.

250402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62599 + ... + 62602.

2²⁵⁰⁴⁰² is an apocalyptic number.

250402 is a deficient number, since it is larger than the sum of its proper divisors (125204).

250402 is a wasteful number, since it uses less digits than its factorization.

250402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125203.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 250402 is about 500.4018385258. The cubic root of 250402 is about 63.0298002965.

Adding to 250402 its reverse (204052), we get a palindrome (454454).

The spelling of 250402 in words is "two hundred fifty thousand, four hundred two".