2506913 has 2 divisors, whose sum is σ = 2506914. Its totient is φ = 2506912.

The previous prime is 2506909. The next prime is 2506919. The reversal of 2506913 is 3196052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2505889 + 1024 = 1583^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 2506913 - 2² = 2506909 is a prime.

It is a super-2 number, since 2×2506913² = 12569225579138, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2506919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253456 + 1253457.

It is an arithmetic number, because the mean of its divisors is an integer number (1253457).

2^2506913 is an apocalyptic number.

It is an amenable number.

2506913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506913 is an equidigital number, since it uses as much as digits as its factorization.

2506913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2506913 is about 1583.3234034776. The cubic root of 2506913 is about 135.8458641590.

The spelling of 2506913 in words is "two million, five hundred six thousand, nine hundred thirteen".