2555213652 has 18 divisors (see below), whose sum is σ = 6459012378. Its totient is φ = 851737872.

The previous prime is 2555213627. The next prime is 2555213653. The reversal of 2555213652 is 2563125552.

2555213652 is a `hidden beast` number, since 2 + 55 + 521 + 36 + 52 = 666.

2555213652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2551664196 + 3549456 = 50514^2 + 1884^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 70978157 = 2555213652 / (2 + 5 + 5 + 5 + 2 + 1 + 3 + 6 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555213653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35489043 + ... + 35489114.

It is an arithmetic number, because the mean of its divisors is an integer number (358834021).

Almost surely, 2^2555213652 is an apocalyptic number.

It is an amenable number.

2555213652 is an abundant number, since it is smaller than the sum of its proper divisors (3903798726).

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

2555213652 is a wasteful number, since it uses less digits than its factorization.

2555213652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70978167 (or 70978162 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 2555213652 is about 50549.1211793044. The cubic root of 2555213652 is about 1367.1276692116.

It can be divided in two parts, 25552 and 13652, that added together give a square (39204 = 198²).

The spelling of 2555213652 in words is "two billion, five hundred fifty-five million, two hundred thirteen thousand, six hundred fifty-two".