2555552620 has 24 divisors (see below), whose sum is σ = 5480846784. Its totient is φ = 1000471296.

The previous prime is 2555552603. The next prime is 2555552647. The reversal of 2555552620 is 262555552.

It is a self number, because there is not a number n which added to its sum of digits gives 2555552620.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358397 + ... + 1360276.

It is an arithmetic number, because the mean of its divisors is an integer number (228368616).

Almost surely, 2^2555552620 is an apocalyptic number.

2555552620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555552620 is an abundant number, since it is smaller than the sum of its proper divisors (2925294164).

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

2555552620 is a wasteful number, since it uses less digits than its factorization.

2555552620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718729 (or 2718727 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 37.

The square root of 2555552620 is about 50552.4739256152. The cubic root of 2555552620 is about 1367.1881197394.

The spelling of 2555552620 in words is "two billion, five hundred fifty-five million, five hundred fifty-two thousand, six hundred twenty".