5655522420 has 36 divisors (see below), whose sum is σ = 17155085220. Its totient is φ = 1508139264.

The previous prime is 5655522359. The next prime is 5655522427. The reversal of 5655522420 is 242255565.

5655522420 is a `hidden beast` number, since 5 + 65 + 552 + 2 + 42 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2652044004 + 3003478416 = 51498^2 + 54804^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5655522427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15709605 + ... + 15709964.

It is an arithmetic number, because the mean of its divisors is an integer number (476530145).

Almost surely, 2^5655522420 is an apocalyptic number.

It is an amenable number.

5655522420 is an abundant number, since it is smaller than the sum of its proper divisors (11499562800).

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

5655522420 is a wasteful number, since it uses less digits than its factorization.

5655522420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31419584 (or 31419579 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 5655522420 is about 75203.2075113821. The cubic root of 5655522420 is about 1781.6575919709.

Adding to 5655522420 its reverse (242255565), we get a palindrome (5897777985).

The spelling of 5655522420 in words is "five billion, six hundred fifty-five million, five hundred twenty-two thousand, four hundred twenty".