2009053578 has 32 divisors (see below), whose sum is σ = 4833815040. Its totient is φ = 543803760.

The previous prime is 2009053573. The next prime is 2009053583. The reversal of 2009053578 is 8753509002.

It is an interprime number because it is at equal distance from previous prime (2009053573) and next prime (2009053583).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2009053573) 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, 1258008 + ... + 1259603.

It is an arithmetic number, because the mean of its divisors is an integer number (151056720).

Almost surely, 2^2009053578 is an apocalyptic number.

2009053578 is an abundant number, since it is smaller than the sum of its proper divisors (2824761462).

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

2009053578 is a wasteful number, since it uses less digits than its factorization.

2009053578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517642.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 2009053578 is about 44822.4673350319. The cubic root of 2009053578 is about 1261.8193206625.

The spelling of 2009053578 in words is "two billion, nine million, fifty-three thousand, five hundred seventy-eight".