2559620380 has 12 divisors (see below), whose sum is σ = 5375202840. Its totient is φ = 1023848144.

The previous prime is 2559620341. The next prime is 2559620381. The reversal of 2559620380 is 830269552.

It is a super-2 number, since 2×2559620380² = 13103312979422688800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2559620381) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 63990490 + ... + 63990529.

It is an arithmetic number, because the mean of its divisors is an integer number (447933570).

Almost surely, 2^2559620380 is an apocalyptic number.

2559620380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2559620380 is an abundant number, since it is smaller than the sum of its proper divisors (2815582460).

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

2559620380 is a wasteful number, since it uses less digits than its factorization.

2559620380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127981028 (or 127981026 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 2559620380 is about 50592.6909740923. The cubic root of 2559620380 is about 1367.9131351374.

It can be divided in two parts, 2559620 and 380, that added together give a 4-th power (2560000 = 40⁴).

The spelling of 2559620380 in words is "two billion, five hundred fifty-nine million, six hundred twenty thousand, three hundred eighty".