2555422420 has 24 divisors (see below), whose sum is σ = 5371537248. Its totient is φ = 1021188000.

The previous prime is 2555422409. The next prime is 2555422459. The reversal of 2555422420 is 242245552.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39766 + ... + 81805.

It is an arithmetic number, because the mean of its divisors is an integer number (223814052).

Almost surely, 2^2555422420 is an apocalyptic number.

2555422420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555422420 is an abundant number, since it is smaller than the sum of its proper divisors (2816114828).

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

2555422420 is a wasteful number, since it uses less digits than its factorization.

2555422420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122631 (or 122629 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 2555422420 is about 50551.1861384083. The cubic root of 2555422420 is about 1367.1649008975.

Adding to 2555422420 its reverse (242245552), we get a palindrome (2797667972).

It can be divided in two parts, 25554 and 22420, that added together give a palindrome (47974).

The spelling of 2555422420 in words is "two billion, five hundred fifty-five million, four hundred twenty-two thousand, four hundred twenty".