2555624442 has 32 divisors (see below), whose sum is σ = 5921453952. Its totient is φ = 720175104.

The previous prime is 2555624417. The next prime is 2555624443. The reversal of 2555624442 is 2444265552.

It is a super-2 number, since 2×2555624442² = 13062432577095622728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2555624442.

It is not an unprimeable number, because it can be changed into a prime (2555624443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413703 + ... + 419834.

It is an arithmetic number, because the mean of its divisors is an integer number (185045436).

Almost surely, 2^2555624442 is an apocalyptic number.

2555624442 is an abundant number, since it is smaller than the sum of its proper divisors (3365829510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2555624442 is a wasteful number, since it uses less digits than its factorization.

2555624442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833622.

The product of its digits is 384000, while the sum is 39.

The square root of 2555624442 is about 50553.1842913975. The cubic root of 2555624442 is about 1367.2009275713.

Adding to 2555624442 its reverse (2444265552), we get a palindrome (4999889994).

The spelling of 2555624442 in words is "two billion, five hundred fifty-five million, six hundred twenty-four thousand, four hundred forty-two".