2556059620 has 48 divisors (see below), whose sum is σ = 5482617840. Its totient is φ = 1000636416.

The previous prime is 2556059593. The next prime is 2556059651. The reversal of 2556059620 is 269506552.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 303038464 + 2253021156 = 17408^2 + 47466^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 456196 + ... + 461764.

It is an arithmetic number, because the mean of its divisors is an integer number (114221205).

Almost surely, 2^2556059620 is an apocalyptic number.

2556059620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2556059620 is an abundant number, since it is smaller than the sum of its proper divisors (2926558220).

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

2556059620 is a wasteful number, since it uses less digits than its factorization.

2556059620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6064 (or 6062 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 2556059620 is about 50557.4882683070. The cubic root of 2556059620 is about 1367.2785266096.

It can be divided in two parts, 255605 and 9620, that added together give a square (265225 = 515²).

The spelling of 2556059620 in words is "two billion, five hundred fifty-six million, fifty-nine thousand, six hundred twenty".