202455 has 24 divisors (see below), whose sum is σ = 383760. Its totient is φ = 97920.

The previous prime is 202441. The next prime is 202471. The reversal of 202455 is 554202.

It is not a de Polignac number, because 202455 - 2⁷ = 202327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291 + ... + 699.

It is an arithmetic number, because the mean of its divisors is an integer number (15990).

2²⁰²⁴⁵⁵ is an apocalyptic number.

202455 is a deficient number, since it is larger than the sum of its proper divisors (181305).

202455 is a wasteful number, since it uses less digits than its factorization.

202455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 202455 is about 449.9499972219. The cubic root of 202455 is about 58.7186644423.

Adding to 202455 its reverse (554202), we get a palindrome (756657).

The spelling of 202455 in words is "two hundred two thousand, four hundred fifty-five".