2500345 has 4 divisors (see below), whose sum is σ = 3000420. Its totient is φ = 2000272.

The previous prime is 2500339. The next prime is 2500357. The reversal of 2500345 is 5430052.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 942841 + 1557504 = 971^2 + 1248^2 .

It is a cyclic number.

It is not a de Polignac number, because 2500345 - 2¹³ = 2492153 is a prime.

It is an Ulam number.

2500345 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250030 + ... + 250039.

It is an arithmetic number, because the mean of its divisors is an integer number (750105).

2^2500345 is an apocalyptic number.

It is an amenable number.

2500345 is a deficient number, since it is larger than the sum of its proper divisors (500075).

2500345 is an equidigital number, since it uses as much as digits as its factorization.

2500345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500074.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 2500345 is about 1581.2479248998. The cubic root of 2500345 is about 135.7271237031.

Adding to 2500345 its reverse (5430052), we get a palindrome (7930397).

The spelling of 2500345 in words is "two million, five hundred thousand, three hundred forty-five".