1052589805 has 8 divisors (see below), whose sum is σ = 1286940312. Its totient is φ = 826183488.

The previous prime is 1052589803. The next prime is 1052589817. The reversal of 1052589805 is 5089852501.

It can be written as a sum of positive squares in 4 ways, for example, as 107765161 + 944824644 = 10381^2 + 30738^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1052589805 - 2¹ = 1052589803 is a prime.

It is a super-2 number, since 2×1052589805² = 2215890595179876050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052589803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1985754 + ... + 1986283.

It is an arithmetic number, because the mean of its divisors is an integer number (160867539).

Almost surely, 2^1052589805 is an apocalyptic number.

It is an amenable number.

1052589805 is a deficient number, since it is larger than the sum of its proper divisors (234350507).

1052589805 is an equidigital number, since it uses as much as digits as its factorization.

1052589805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972095.

The product of its (nonzero) digits is 144000, while the sum is 43.

The square root of 1052589805 is about 32443.6404399999. The cubic root of 1052589805 is about 1017.2313114754.

The spelling of 1052589805 in words is "one billion, fifty-two million, five hundred eighty-nine thousand, eight hundred five".