12550510155 has 32 divisors (see below), whose sum is σ = 20290374720. Its totient is φ = 6623907840.

The previous prime is 12550510127. The next prime is 12550510183. The reversal of 12550510155 is 55101505521.

It is an interprime number because it is at equal distance from previous prime (12550510127) and next prime (12550510183).

It is not a de Polignac number, because 12550510155 - 2⁸ = 12550509899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1436079 + ... + 1444791.

It is an arithmetic number, because the mean of its divisors is an integer number (634074210).

Almost surely, 2^12550510155 is an apocalyptic number.

12550510155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12550510155 is a deficient number, since it is larger than the sum of its proper divisors (7739864565).

12550510155 is a wasteful number, since it uses less digits than its factorization.

12550510155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711.

The product of its (nonzero) digits is 6250, while the sum is 30.

The spelling of 12550510155 in words is "twelve billion, five hundred fifty million, five hundred ten thousand, one hundred fifty-five".