2521250000 has 80 divisors (see below), whose sum is σ = 6109164048. Its totient is φ = 1008000000.

The previous prime is 2521249963. The next prime is 2521250021. The reversal of 2521250000 is 521252.

It can be written as a sum of positive squares in 8 ways, for example, as 2292877456 + 228372544 = 47884^2 + 15112^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248992 + ... + 1251008.

Almost surely, 2^2521250000 is an apocalyptic number.

2521250000 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 2521250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3054582024).

2521250000 is an abundant number, since it is smaller than the sum of its proper divisors (3587914048).

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

2521250000 is an frugal number, since it uses more digits than its factorization.

2521250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2521250000 is about 50212.0503465055. The cubic root of 2521250000 is about 1361.0433890442.

Adding to 2521250000 its reverse (521252), we get a palindrome (2521771252).

The spelling of 2521250000 in words is "two billion, five hundred twenty-one million, two hundred fifty thousand".