1955005 has 16 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 1366848.

The previous prime is 1954991. The next prime is 1955021. The reversal of 1955005 is 5005591.

It is a cyclic number.

It is not a de Polignac number, because 1955005 - 2⁷ = 1954877 is a prime.

It is an Ulam number.

It is a congruent number.

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, 444 + ... + 2026.

It is an arithmetic number, because the mean of its divisors is an integer number (166320).

2^1955005 is an apocalyptic number.

It is an amenable number.

1955005 is a deficient number, since it is larger than the sum of its proper divisors (706115).

1955005 is a wasteful number, since it uses less digits than its factorization.

1955005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 1955005 is about 1398.2149334062. The cubic root of 1955005 is about 125.0400938052.

The spelling of 1955005 in words is "one million, nine hundred fifty-five thousand, five".