1955209002 has 8 divisors (see below), whose sum is σ = 3910418016. Its totient is φ = 651736332.

The previous prime is 1955208991. The next prime is 1955209007. The reversal of 1955209002 is 2009025591.

It is a sphenic number, since it is the product of 3 distinct primes.

1955209002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1955209007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162934078 + ... + 162934089.

It is an arithmetic number, because the mean of its divisors is an integer number (488802252).

Almost surely, 2^1955209002 is an apocalyptic number.

1955209002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1955209002 is a wasteful number, since it uses less digits than its factorization.

1955209002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325868172.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 1955209002 is about 44217.7453292227. The cubic root of 1955209002 is about 1250.4444290609. Note that the first 4 decimals are identical.

The spelling of 1955209002 in words is "one billion, nine hundred fifty-five million, two hundred nine thousand, two".