10420255 has 4 divisors (see below), whose sum is σ = 12504312. Its totient is φ = 8336200.

The previous prime is 10420243. The next prime is 10420259. The reversal of 10420255 is 55202401.

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

It is not a de Polignac number, because 10420255 - 2⁹ = 10419743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420259) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1042021 + ... + 1042030.

It is an arithmetic number, because the mean of its divisors is an integer number (3126078).

Almost surely, 2^10420255 is an apocalyptic number.

10420255 is a deficient number, since it is larger than the sum of its proper divisors (2084057).

10420255 is an equidigital number, since it uses as much as digits as its factorization.

10420255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084056.

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

The square root of 10420255 is about 3228.0419761831. The cubic root of 10420255 is about 218.4201908883.

Adding to 10420255 its reverse (55202401), we get a palindrome (65622656).

It can be divided in two parts, 1042025 and 5, that multiplied together give a palindrome (5210125).

The spelling of 10420255 in words is "ten million, four hundred twenty thousand, two hundred fifty-five".