2506321000 has 32 divisors (see below), whose sum is σ = 5864793480. Its totient is φ = 1002528000.

The previous prime is 2506320991. The next prime is 2506321001. The reversal of 2506321000 is 1236052.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 651985156 + 1854335844 = 25534^2 + 43062^2 .

It is not an unprimeable number, because it can be changed into a prime (2506321001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1252161 + ... + 1254160.

Almost surely, 2^2506321000 is an apocalyptic number.

2506321000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2506321000 is an abundant number, since it is smaller than the sum of its proper divisors (3358472480).

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

2506321000 is a wasteful number, since it uses less digits than its factorization.

2506321000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506342 (or 2506328 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2506321000 is about 50063.1700953905. The cubic root of 2506321000 is about 1358.3517011915.

Adding to 2506321000 its reverse (1236052), we get a palindrome (2507557052).

The spelling of 2506321000 in words is "two billion, five hundred six million, three hundred twenty-one thousand".