2525251 has 4 divisors (see below), whose sum is σ = 2549872. Its totient is φ = 2500632.

The previous prime is 2525249. The next prime is 2525267. The reversal of 2525251 is 1525252.

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

It is a cyclic number.

It is not a de Polignac number, because 2525251 - 2¹ = 2525249 is a prime.

It is a super-2 number, since 2×2525251² = 12753785226002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2525221) 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, 12156 + ... + 12361.

It is an arithmetic number, because the mean of its divisors is an integer number (637468).

2^2525251 is an apocalyptic number.

2525251 is a deficient number, since it is larger than the sum of its proper divisors (24621).

2525251 is a wasteful number, since it uses less digits than its factorization.

2525251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24620.

The product of its digits is 1000, while the sum is 22.

The square root of 2525251 is about 1589.1038354997. The cubic root of 2525251 is about 136.1762960237.

Subtracting from 2525251 its reverse (1525252), we obtain a palindrome (999999).

The spelling of 2525251 in words is "two million, five hundred twenty-five thousand, two hundred fifty-one".