2555522 has 4 divisors (see below), whose sum is σ = 3833286. Its totient is φ = 1277760.

The previous prime is 2555521. The next prime is 2555543. The reversal of 2555522 is 2255552.

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., 1635841 + 919681 = 1279^2 + 959^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2555491 and 2555500.

It is not an unprimeable number, because it can be changed into a prime (2555521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638879 + ... + 638882.

2^2555522 is an apocalyptic number.

2555522 is a deficient number, since it is larger than the sum of its proper divisors (1277764).

2555522 is a wasteful number, since it uses less digits than its factorization.

2555522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277763.

The product of its digits is 5000, while the sum is 26.

The square root of 2555522 is about 1598.6000125109. The cubic root of 2555522 is about 136.7182659281.

The spelling of 2555522 in words is "two million, five hundred fifty-five thousand, five hundred twenty-two".