2555938406 has 64 divisors (see below), whose sum is σ = 5041336320. Its totient is φ = 945146880.

The previous prime is 2555938393. The next prime is 2555938439. The reversal of 2555938406 is 6048395552.

It is a super-2 number, since 2×2555938406² = 13065642270531641672, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 131066 + ... + 149298.

It is an arithmetic number, because the mean of its divisors is an integer number (78770880).

Almost surely, 2^2555938406 is an apocalyptic number.

2555938406 is a deficient number, since it is larger than the sum of its proper divisors (2485397914).

2555938406 is a wasteful number, since it uses less digits than its factorization.

2555938406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18309.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The square root of 2555938406 is about 50556.2894801428. The cubic root of 2555938406 is about 1367.2569131441.

The spelling of 2555938406 in words is "two billion, five hundred fifty-five million, nine hundred thirty-eight thousand, four hundred six".