12500054020 has 48 divisors (see below), whose sum is σ = 27817272000. Its totient is φ = 4705050240.

The previous prime is 12500054009. The next prime is 12500054027. The reversal of 12500054020 is 2045000521.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (12500054027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53766 + ... + 167005.

It is an arithmetic number, because the mean of its divisors is an integer number (579526500).

Almost surely, 2^12500054020 is an apocalyptic number.

12500054020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12500054020 is an abundant number, since it is smaller than the sum of its proper divisors (15317217980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12500054020 is a wasteful number, since it uses less digits than its factorization.

12500054020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220948 (or 220946 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

Adding to 12500054020 its reverse (2045000521), we get a palindrome (14545054541).

The spelling of 12500054020 in words is "twelve billion, five hundred million, fifty-four thousand, twenty".