10402255 has 4 divisors (see below), whose sum is σ = 12482712. Its totient is φ = 8321800.

The previous prime is 10402247. The next prime is 10402277. The reversal of 10402255 is 55220401.

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

It is not a de Polignac number, because 10402255 - 2³ = 10402247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040221 + ... + 1040230.

It is an arithmetic number, because the mean of its divisors is an integer number (3120678).

Almost surely, 2^10402255 is an apocalyptic number.

10402255 is a deficient number, since it is larger than the sum of its proper divisors (2080457).

10402255 is an equidigital number, since it uses as much as digits as its factorization.

10402255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080456.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 10402255 is about 3225.2527032777. The cubic root of 10402255 is about 218.2943516962.

Adding to 10402255 its reverse (55220401), we get a palindrome (65622656).

The spelling of 10402255 in words is "ten million, four hundred two thousand, two hundred fifty-five".