2002157503 has 8 divisors (see below), whose sum is σ = 2023921872. Its totient is φ = 1980416256.

The previous prime is 2002157497. The next prime is 2002157519. The reversal of 2002157503 is 3057512002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002157503 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 (2002157533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212376 + ... + 221602.

It is an arithmetic number, because the mean of its divisors is an integer number (252990234).

Almost surely, 2^2002157503 is an apocalyptic number.

2002157503 is a deficient number, since it is larger than the sum of its proper divisors (21764369).

2002157503 is an equidigital number, since it uses as much as digits as its factorization.

2002157503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11561.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 2002157503 is about 44745.4746650429. The cubic root of 2002157503 is about 1260.3739343248.

Adding to 2002157503 its reverse (3057512002), we get a palindrome (5059669505).

The spelling of 2002157503 in words is "two billion, two million, one hundred fifty-seven thousand, five hundred three".