1955955 has 16 divisors (see below), whose sum is σ = 3294720. Its totient is φ = 988128.

The previous prime is 1955939. The next prime is 1955957. The reversal of 1955955 is 5595591.

It is a happy number.

It is not a de Polignac number, because 1955955 - 2⁴ = 1955939 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1955957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3147 + ... + 3716.

It is an arithmetic number, because the mean of its divisors is an integer number (205920).

2^1955955 is an apocalyptic number.

1955955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1955955 is a deficient number, since it is larger than the sum of its proper divisors (1338765).

1955955 is a wasteful number, since it uses less digits than its factorization.

1955955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6890.

The product of its digits is 50625, while the sum is 39.

The square root of 1955955 is about 1398.5546110181. The cubic root of 1955955 is about 125.0603441973.

The spelling of 1955955 in words is "one million, nine hundred fifty-five thousand, nine hundred fifty-five".