20000510255 has 16 divisors (see below), whose sum is σ = 26229032064. Its totient is φ = 14519966880.

The previous prime is 20000510207. The next prime is 20000510267. The reversal of 20000510255 is 55201500002.

It is not a de Polignac number, because 20000510255 - 2¹² = 20000506159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291989 + ... + 353918.

It is an arithmetic number, because the mean of its divisors is an integer number (1639314504).

Almost surely, 2^20000510255 is an apocalyptic number.

20000510255 is a deficient number, since it is larger than the sum of its proper divisors (6228521809).

20000510255 is a wasteful number, since it uses less digits than its factorization.

20000510255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646486.

The product of its (nonzero) digits is 500, while the sum is 20.

The spelling of 20000510255 in words is "twenty billion, five hundred ten thousand, two hundred fifty-five".