2503628381 has 6 divisors (see below), whose sum is σ = 2517569946. Its totient is φ = 2489763600.

The previous prime is 2503628357. The next prime is 2503628389. The reversal of 2503628381 is 1838263052.

It can be written as a sum of positive squares in 3 ways, for example, as 752624356 + 1751004025 = 27434^2 + 41845^2 .

It is not a de Polignac number, because 2503628381 - 2¹⁴ = 2503611997 is a prime.

It is a super-2 number, since 2×2503628381² = 12536310140297362322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2503628389) 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 5 ways as a sum of consecutive naturals, for example, 5450 + ... + 70971.

It is an arithmetic number, because the mean of its divisors is an integer number (419594991).

Almost surely, 2^2503628381 is an apocalyptic number.

It is an amenable number.

2503628381 is a deficient number, since it is larger than the sum of its proper divisors (13941565).

2503628381 is an frugal number, since it uses more digits than its factorization.

2503628381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76783 (or 76602 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 2503628381 is about 50036.2706543963. The cubic root of 2503628381 is about 1357.8650869896.

The spelling of 2503628381 in words is "two billion, five hundred three million, six hundred twenty-eight thousand, three hundred eighty-one".