2500913 has 4 divisors (see below), whose sum is σ = 2632560. Its totient is φ = 2369268.

The previous prime is 2500891. The next prime is 2500919. The reversal of 2500913 is 3190052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2500913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500919) 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, 65795 + ... + 65832.

It is an arithmetic number, because the mean of its divisors is an integer number (658140).

2^2500913 is an apocalyptic number.

It is an amenable number.

2500913 is a deficient number, since it is larger than the sum of its proper divisors (131647).

2500913 is a wasteful number, since it uses less digits than its factorization.

2500913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131646.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 2500913 is about 1581.4275196796. The cubic root of 2500913 is about 135.7374005741.

Adding to 2500913 its reverse (3190052), we get a palindrome (5690965).

The spelling of 2500913 in words is "two million, five hundred thousand, nine hundred thirteen".