2500305 has 32 divisors (see below), whose sum is σ = 4362240. Its totient is φ = 1218240.

The previous prime is 2500301. The next prime is 2500331. The reversal of 2500305 is 5030052.

It is not a de Polignac number, because 2500305 - 2² = 2500301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

2500305 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2500301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8694 + ... + 8976.

It is an arithmetic number, because the mean of its divisors is an integer number (136320).

2^2500305 is an apocalyptic number.

It is an amenable number.

2500305 is a deficient number, since it is larger than the sum of its proper divisors (1861935).

2500305 is a wasteful number, since it uses less digits than its factorization.

2500305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 2500305 is about 1581.2352766113. The cubic root of 2500305 is about 135.7263999211.

Adding to 2500305 its reverse (5030052), we get a palindrome (7530357).

The spelling of 2500305 in words is "two million, five hundred thousand, three hundred five".