6155622 has 64 divisors (see below), whose sum is σ = 15333120. Its totient is φ = 1814400.

The previous prime is 6155621. The next prime is 6155641. The reversal of 6155622 is 2265516.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (3600) is a multiple of the sum of its prime divisors (300).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6155621) 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, 25422 + ... + 25662.

It is an arithmetic number, because the mean of its divisors is an integer number (239580).

Almost surely, 2^6155622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6155622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7666560).

6155622 is an abundant number, since it is smaller than the sum of its proper divisors (9177498).

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

6155622 is a wasteful number, since it uses less digits than its factorization.

6155622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 300 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 6155622 is about 2481.0525992006. The cubic root of 6155622 is about 183.2696910411.

The spelling of 6155622 in words is "six million, one hundred fifty-five thousand, six hundred twenty-two".