2055658 has 32 divisors (see below), whose sum is σ = 3592512. Its totient is φ = 873600.

The previous prime is 2055649. The next prime is 2055673. The reversal of 2055658 is 8565502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38760 + ... + 38812.

It is an arithmetic number, because the mean of its divisors is an integer number (112266).

2^2055658 is an apocalyptic number.

2055658 is a deficient number, since it is larger than the sum of its proper divisors (1536854).

2055658 is a wasteful number, since it uses less digits than its factorization.

2055658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 2055658 is about 1433.7566041696. The cubic root of 2055658 is about 127.1501726573.

It can be divided in two parts, 2055 and 658, that multiplied together give a triangular number (1352190 = T₁₆₄₄).

The spelling of 2055658 in words is "two million, fifty-five thousand, six hundred fifty-eight".