2525506 has 4 divisors (see below), whose sum is σ = 3788262. Its totient is φ = 1262752.

The previous prime is 2525489. The next prime is 2525507. The reversal of 2525506 is 6055252.

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

It can be written as a sum of positive squares in only one way, i.e., 1985281 + 540225 = 1409^2 + 735^2 .

It is not an unprimeable number, because it can be changed into a prime (2525507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631375 + ... + 631378.

2^2525506 is an apocalyptic number.

2525506 is a deficient number, since it is larger than the sum of its proper divisors (1262756).

2525506 is a wasteful number, since it uses less digits than its factorization.

2525506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262755.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2525506 is about 1589.1840673755. The cubic root of 2525506 is about 136.1808795663.

The spelling of 2525506 in words is "two million, five hundred twenty-five thousand, five hundred six".