2053865490 has 16 divisors (see below), whose sum is σ = 4929277248. Its totient is φ = 547697456.

The previous prime is 2053865479. The next prime is 2053865491. The reversal of 2053865490 is 945683502.

It is not an unprimeable number, because it can be changed into a prime (2053865491) 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 7 ways as a sum of consecutive naturals, for example, 34231062 + ... + 34231121.

It is an arithmetic number, because the mean of its divisors is an integer number (308079828).

Almost surely, 2^2053865490 is an apocalyptic number.

2053865490 is an abundant number, since it is smaller than the sum of its proper divisors (2875411758).

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

2053865490 is a wasteful number, since it uses less digits than its factorization.

2053865490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68462193.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 2053865490 is about 45319.5927828130. The cubic root of 2053865490 is about 1271.1320408315.

The spelling of 2053865490 in words is "two billion, fifty-three million, eight hundred sixty-five thousand, four hundred ninety".