2500012800 has 162 divisors, whose sum is σ = 8938315932. Its totient is φ = 666654720.

The previous prime is 2500012783. The next prime is 2500012829. The reversal of 2500012800 is 82100052.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 35899 + ... + 79301.

Almost surely, 2^2500012800 is an apocalyptic number.

2500012800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2500012800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4469157966).

2500012800 is an abundant number, since it is smaller than the sum of its proper divisors (6438303132).

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

2500012800 is a wasteful number, since it uses less digits than its factorization.

2500012800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43435 (or 43413 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2500012800 is about 50000.1279998362. The cubic root of 2500012800 is about 1357.2111245965.

Adding to 2500012800 its reverse (82100052), we get a palindrome (2582112852).

The spelling of 2500012800 in words is "two billion, five hundred million, twelve thousand, eight hundred".