10509255 has 24 divisors (see below), whose sum is σ = 18292560. Its totient is φ = 5581440.

The previous prime is 10509251. The next prime is 10509259. The reversal of 10509255 is 55290501.

10509255 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10509251) and next prime (10509259).

It is not a de Polignac number, because 10509255 - 2² = 10509251 is a prime.

It is a super-2 number, since 2×10509255² = 220888881310050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10509251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18120 + ... + 18690.

It is an arithmetic number, because the mean of its divisors is an integer number (762190).

Almost surely, 2^10509255 is an apocalyptic number.

10509255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10509255 is a deficient number, since it is larger than the sum of its proper divisors (7783305).

10509255 is a wasteful number, since it uses less digits than its factorization.

10509255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 10509255 is about 3241.7981121594. The cubic root of 10509255 is about 219.0402753224.

Adding to 10509255 its reverse (55290501), we get a palindrome (65799756).

The spelling of 10509255 in words is "ten million, five hundred nine thousand, two hundred fifty-five".