5555620 has 36 divisors (see below), whose sum is σ = 13573980. Its totient is φ = 1904448.

The previous prime is 5555611. The next prime is 5555629. The reversal of 5555620 is 265555.

It is an interprime number because it is at equal distance from previous prime (5555611) and next prime (5555629).

It can be written as a sum of positive squares in 2 ways, for example, as 1658944 + 3896676 = 1288^2 + 1974^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555629) 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, 1855 + ... + 3814.

It is an arithmetic number, because the mean of its divisors is an integer number (377055).

Almost surely, 2^5555620 is an apocalyptic number.

It is an amenable number.

5555620 is an abundant number, since it is smaller than the sum of its proper divisors (8018360).

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

5555620 is a wasteful number, since it uses less digits than its factorization.

5555620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692 (or 5683 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 5555620 is about 2357.0362746466. The cubic root of 5555620 is about 177.1104463522.

The spelling of 5555620 in words is "five million, five hundred fifty-five thousand, six hundred twenty".