2500120000 has 140 divisors (see below), whose sum is σ = 7085919280. Its totient is φ = 857088000.

The previous prime is 2500119907. The next prime is 2500120003. The reversal of 2500120000 is 210052.

It is a tau number, because it is divible by the number of its divisors (140).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500120003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 275536 + ... + 284464.

Almost surely, 2^2500120000 is an apocalyptic number.

2500120000 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 2500120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3542959640).

2500120000 is an abundant number, since it is smaller than the sum of its proper divisors (4585799280).

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

2500120000 is an frugal number, since it uses more digits than its factorization.

2500120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8968 (or 8943 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 2500120000 is about 50001.1999856003. The cubic root of 2500120000 is about 1357.2305232909.

Adding to 2500120000 its reverse (210052), we get a palindrome (2500330052).

It can be divided in two parts, 2500 and 120000, that added together give a square (122500 = 350²).

The spelling of 2500120000 in words is "two billion, five hundred million, one hundred twenty thousand".