2505251 has 8 divisors (see below), whose sum is σ = 2874720. Its totient is φ = 2138688.

The previous prime is 2505247. The next prime is 2505253. The reversal of 2505251 is 1525052.

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

It is a cyclic number.

It is not a de Polignac number, because 2505251 - 2² = 2505247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1655 + ... + 2783.

It is an arithmetic number, because the mean of its divisors is an integer number (359340).

2^2505251 is an apocalyptic number.

2505251 is a deficient number, since it is larger than the sum of its proper divisors (369469).

2505251 is a wasteful number, since it uses less digits than its factorization.

2505251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 2505251 is about 1582.7984710632. The cubic root of 2505251 is about 135.8158370914.

The spelling of 2505251 in words is "two million, five hundred five thousand, two hundred fifty-one".