1955035009 has 16 divisors (see below), whose sum is σ = 2040603840. Its totient is φ = 1871812800.

The previous prime is 1955034967. The next prime is 1955035031. The reversal of 1955035009 is 9005305591.

It is a cyclic number.

It is not a de Polignac number, because 1955035009 - 2¹⁵ = 1955002241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1955035409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384534 + ... + 389584.

It is an arithmetic number, because the mean of its divisors is an integer number (127537740).

Almost surely, 2^1955035009 is an apocalyptic number.

It is an amenable number.

1955035009 is a deficient number, since it is larger than the sum of its proper divisors (85568831).

1955035009 is a wasteful number, since it uses less digits than its factorization.

1955035009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280.

The product of its (nonzero) digits is 30375, while the sum is 37.

The square root of 1955035009 is about 44215.7778287344. Note that the first 3 decimals coincide. The cubic root of 1955035009 is about 1250.4073358343.

The spelling of 1955035009 in words is "one billion, nine hundred fifty-five million, thirty-five thousand, nine".