6155550 has 36 divisors (see below), whose sum is σ = 16539120. Its totient is φ = 1641360.

The previous prime is 6155549. The next prime is 6155551. The reversal of 6155550 is 555516.

6155550 is a `hidden beast` number, since 61 + 55 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (6155549) and next prime (6155551).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6155551) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6390 + ... + 7289.

It is an arithmetic number, because the mean of its divisors is an integer number (459420).

Almost surely, 2^6155550 is an apocalyptic number.

6155550 is an abundant number, since it is smaller than the sum of its proper divisors (10383570).

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

6155550 is a wasteful number, since it uses less digits than its factorization.

6155550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13697 (or 13689 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 6155550 is about 2481.0380891877. The cubic root of 6155550 is about 183.2689764927.

It can be divided in two parts, 61 and 55550, that added together give a triangular number (55611 = T₃₃₃).

The spelling of 6155550 in words is "six million, one hundred fifty-five thousand, five hundred fifty".