16251225255 has 24 divisors (see below), whose sum is σ = 29651359920. Its totient is φ = 8211144960.

The previous prime is 16251225247. The next prime is 16251225257. The reversal of 16251225255 is 55252215261.

16251225255 is a `hidden beast` number, since 1 + 6 + 2 + 5 + 122 + 525 + 5 = 666.

It is not a de Polignac number, because 16251225255 - 2³ = 16251225247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16251225257) 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, 9502786 + ... + 9504495.

It is an arithmetic number, because the mean of its divisors is an integer number (1235473330).

Almost surely, 2^16251225255 is an apocalyptic number.

16251225255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16251225255 is a deficient number, since it is larger than the sum of its proper divisors (13400134665).

16251225255 is a wasteful number, since it uses less digits than its factorization.

16251225255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19007311 (or 19007308 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The spelling of 16251225255 in words is "sixteen billion, two hundred fifty-one million, two hundred twenty-five thousand, two hundred fifty-five".