2501530 has 8 divisors (see below), whose sum is σ = 4502772. Its totient is φ = 1000608.

The previous prime is 2501507. The next prime is 2501563. The reversal of 2501530 is 351052.

2501530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2468041 + 33489 = 1571^2 + 183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125067 + ... + 125086.

2^2501530 is an apocalyptic number.

2501530 is a deficient number, since it is larger than the sum of its proper divisors (2001242).

2501530 is a wasteful number, since it uses less digits than its factorization.

2501530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250160.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 2501530 is about 1581.6225845631. The cubic root of 2501530 is about 135.7485622432.

Adding to 2501530 its reverse (351052), we get a palindrome (2852582).

The spelling of 2501530 in words is "two million, five hundred one thousand, five hundred thirty".