2499000100 has 27 divisors (see below), whose sum is σ = 5423915217. Its totient is φ = 999400080.

The previous prime is 2499000089. The next prime is 2499000109. The reversal of 2499000100 is 10009942.

The square root of 2499000100 is 49990.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 899640036 + 1599360064 = 29994^2 + 39992^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2499000109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 497401 + ... + 502399.

Almost surely, 2^2499000100 is an apocalyptic number.

2499000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2499000100 is the 49990-th square number.

It is an amenable number.

2499000100 is an abundant number, since it is smaller than the sum of its proper divisors (2924915117).

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

2499000100 is an frugal number, since it uses more digits than its factorization.

2499000100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012 (or 5006 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The cubic root of 2499000100 is about 1357.0278410904.

Multiplying 2499000100 by its sum of digits (25), we get a square (62475002500 = 249950²).

2499000100 divided by its sum of digits (25) gives a square (99960004 = 9998²).

The spelling of 2499000100 in words is "two billion, four hundred ninety-nine million, one hundred", and thus it is an aban number.