2555535444 has 48 divisors (see below), whose sum is σ = 7434287616. Its totient is φ = 663775200.

The previous prime is 2555535443. The next prime is 2555535469. The reversal of 2555535444 is 4445355552.

It is a super-2 number, since 2×2555535444² = 13061522811080554272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 2555535396 and 2555535405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555535443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1381942 + ... + 1383789.

It is an arithmetic number, because the mean of its divisors is an integer number (154880992).

Almost surely, 2^2555535444 is an apocalyptic number.

It is an amenable number.

2555535444 is an abundant number, since it is smaller than the sum of its proper divisors (4878752172).

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

2555535444 is a wasteful number, since it uses less digits than its factorization.

2555535444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765756 (or 2765754 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 42.

The square root of 2555535444 is about 50552.3040424470. The cubic root of 2555535444 is about 1367.1850567521.

The spelling of 2555535444 in words is "two billion, five hundred fifty-five million, five hundred thirty-five thousand, four hundred forty-four".