2506103 has 4 divisors (see below), whose sum is σ = 2615088. Its totient is φ = 2397120.

The previous prime is 2506099. The next prime is 2506109. The reversal of 2506103 is 3016052.

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

It is a cyclic number.

It is not a de Polignac number, because 2506103 - 2² = 2506099 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 (2506109) 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, 54458 + ... + 54503.

It is an arithmetic number, because the mean of its divisors is an integer number (653772).

2^2506103 is an apocalyptic number.

2506103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2506103 is a deficient number, since it is larger than the sum of its proper divisors (108985).

2506103 is a wasteful number, since it uses less digits than its factorization.

2506103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108984.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2506103 is about 1583.0675917345. The cubic root of 2506103 is about 135.8312316870.

The spelling of 2506103 in words is "two million, five hundred six thousand, one hundred three".