2555450540 has 96 divisors (see below), whose sum is σ = 5769792000. Its totient is φ = 947358720.

The previous prime is 2555450519. The next prime is 2555450549. The reversal of 2555450540 is 450545552.

It is a self number, because there is not a number n which added to its sum of digits gives 2555450540.

It is not an unprimeable number, because it can be changed into a prime (2555450549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12111035 + ... + 12111245.

It is an arithmetic number, because the mean of its divisors is an integer number (60102000).

Almost surely, 2^2555450540 is an apocalyptic number.

2555450540 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 2555450540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2884896000).

2555450540 is an abundant number, since it is smaller than the sum of its proper divisors (3214341460).

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

2555450540 is a wasteful number, since it uses less digits than its factorization.

2555450540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 35.

The square root of 2555450540 is about 50551.4642715718. The cubic root of 2555450540 is about 1367.1699156635.

The spelling of 2555450540 in words is "two billion, five hundred fifty-five million, four hundred fifty thousand, five hundred forty".