2503381871 has 4 divisors (see below), whose sum is σ = 2503827600. Its totient is φ = 2502936144.

The previous prime is 2503381861. The next prime is 2503381891. The reversal of 2503381871 is 1781833052.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2503381871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2503381861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214331 + ... + 225708.

It is an arithmetic number, because the mean of its divisors is an integer number (625956900).

Almost surely, 2^2503381871 is an apocalyptic number.

2503381871 is a deficient number, since it is larger than the sum of its proper divisors (445729).

2503381871 is an equidigital number, since it uses as much as digits as its factorization.

2503381871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445728.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 2503381871 is about 50033.8072806777. The cubic root of 2503381871 is about 1357.8205198976.

The spelling of 2503381871 in words is "two billion, five hundred three million, three hundred eighty-one thousand, eight hundred seventy-one".