2503256240 has 20 divisors (see below), whose sum is σ = 5820070944. Its totient is φ = 1001302464.

The previous prime is 2503256209. The next prime is 2503256257. The reversal of 2503256240 is 426523052.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15645272 + ... + 15645431.

Almost surely, 2^2503256240 is an apocalyptic number.

2503256240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2503256240 is an abundant number, since it is smaller than the sum of its proper divisors (3316814704).

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

2503256240 is a wasteful number, since it uses less digits than its factorization.

2503256240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31290716 (or 31290710 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2503256240 is about 50032.5518038007. The cubic root of 2503256240 is about 1357.7978056638.

Adding to 2503256240 its reverse (426523052), we get a palindrome (2929779292).

The spelling of 2503256240 in words is "two billion, five hundred three million, two hundred fifty-six thousand, two hundred forty".