12502909550 has 24 divisors (see below), whose sum is σ = 23280056856. Its totient is φ = 4995863840.

The previous prime is 12502909499. The next prime is 12502909583. The reversal of 12502909550 is 5590920521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84677 + ... + 179376.

It is an arithmetic number, because the mean of its divisors is an integer number (970002369).

Almost surely, 2^12502909550 is an apocalyptic number.

12502909550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12502909550 is a deficient number, since it is larger than the sum of its proper divisors (10777147306).

12502909550 is a wasteful number, since it uses less digits than its factorization.

12502909550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265012 (or 265007 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 38.

The spelling of 12502909550 in words is "twelve billion, five hundred two million, nine hundred nine thousand, five hundred fifty".