2555252520 has 64 divisors (see below), whose sum is σ = 7694352000. Its totient is φ = 678859008.

The previous prime is 2555252509. The next prime is 2555252521. The reversal of 2555252520 is 252525552.

It is not an unprimeable number, because it can be changed into a prime (2555252521) 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 15 ways as a sum of consecutive naturals, for example, 7300 + ... + 71859.

It is an arithmetic number, because the mean of its divisors is an integer number (120224250).

Almost surely, 2^2555252520 is an apocalyptic number.

2555252520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2555252520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3847176000).

2555252520 is an abundant number, since it is smaller than the sum of its proper divisors (5139099480).

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

2555252520 is a wasteful number, since it uses less digits than its factorization.

2555252520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79442 (or 79438 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 33.

The square root of 2555252520 is about 50549.5056355648. The cubic root of 2555252520 is about 1367.1346010845.

The spelling of 2555252520 in words is "two billion, five hundred fifty-five million, two hundred fifty-two thousand, five hundred twenty".