2215542503 has 4 divisors (see below), whose sum is σ = 2287011648. Its totient is φ = 2144073360.

The previous prime is 2215542451. The next prime is 2215542521. The reversal of 2215542503 is 3052455122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3052455122 = 2 ⋅1526227561.

It is a cyclic number.

It is not a de Polignac number, because 2215542503 - 2¹⁸ = 2215280359 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 (2215542583) 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 3 ways as a sum of consecutive naturals, for example, 35734526 + ... + 35734587.

It is an arithmetic number, because the mean of its divisors is an integer number (571752912).

Almost surely, 2^2215542503 is an apocalyptic number.

2215542503 is a deficient number, since it is larger than the sum of its proper divisors (71469145).

2215542503 is an equidigital number, since it uses as much as digits as its factorization.

2215542503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71469144.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2215542503 is about 47069.5496366813. The cubic root of 2215542503 is about 1303.6470572950.

Adding to 2215542503 its reverse (3052455122), we get a palindrome (5267997625).

The spelling of 2215542503 in words is "two billion, two hundred fifteen million, five hundred forty-two thousand, five hundred three".