1765809053 has 16 divisors (see below), whose sum is σ = 1871952960. Its totient is φ = 1663618176.

The previous prime is 1765809041. The next prime is 1765809083. The reversal of 1765809053 is 3509085671.

It is a cyclic number.

It is not a de Polignac number, because 1765809053 - 2⁴ = 1765809037 is a prime.

It is a super-2 number, since 2×1765809053² = 6236163223313513618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1765808995 and 1765809013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1765809013) 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, 140225 + ... + 152297.

It is an arithmetic number, because the mean of its divisors is an integer number (116997060).

Almost surely, 2^1765809053 is an apocalyptic number.

It is an amenable number.

1765809053 is a deficient number, since it is larger than the sum of its proper divisors (106143907).

1765809053 is a wasteful number, since it uses less digits than its factorization.

1765809053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12236.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 1765809053 is about 42021.5308264704. The cubic root of 1765809053 is about 1208.6890277440.

The spelling of 1765809053 in words is "one billion, seven hundred sixty-five million, eight hundred nine thousand, fifty-three".