2507522 has 4 divisors (see below), whose sum is σ = 3761286. Its totient is φ = 1253760.

The previous prime is 2507489. The next prime is 2507567. The reversal of 2507522 is 2257052.

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., 1343281 + 1164241 = 1159^2 + 1079^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626879 + ... + 626882.

2^2507522 is an apocalyptic number.

2507522 is a deficient number, since it is larger than the sum of its proper divisors (1253764).

2507522 is a wasteful number, since it uses less digits than its factorization.

2507522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253763.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 2507522 is about 1583.5157087948. The cubic root of 2507522 is about 135.8568635346.

The spelling of 2507522 in words is "two million, five hundred seven thousand, five hundred twenty-two".