2555216004 has 192 divisors, whose sum is σ = 7145994240. Its totient is φ = 703866240.

The previous prime is 2555215963. The next prime is 2555216009. The reversal of 2555216004 is 4006125552.

It is not an unprimeable number, because it can be changed into a prime (2555216009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59423607 + ... + 59423649.

It is an arithmetic number, because the mean of its divisors is an integer number (37218720).

Almost surely, 2^2555216004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555216004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3572997120).

2555216004 is an abundant number, since it is smaller than the sum of its proper divisors (4590778236).

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

2555216004 is a wasteful number, since it uses less digits than its factorization.

2555216004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 2555216004 is about 50549.1444437985. The cubic root of 2555216004 is about 1367.1280886786.

The spelling of 2555216004 in words is "two billion, five hundred fifty-five million, two hundred sixteen thousand, four".