1565532042 has 8 divisors (see below), whose sum is σ = 3131064096. Its totient is φ = 521844012.

The previous prime is 1565531971. The next prime is 1565532043. The reversal of 1565532042 is 2402355651.

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

1565532042 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1565531994 and 1565532012.

It is not an unprimeable number, because it can be changed into a prime (1565532043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130460998 + ... + 130461009.

It is an arithmetic number, because the mean of its divisors is an integer number (391383012).

Almost surely, 2^1565532042 is an apocalyptic number.

1565532042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1565532042 is a wasteful number, since it uses less digits than its factorization.

1565532042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260922012.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 1565532042 is about 39566.8047989726. The cubic root of 1565532042 is about 1161.1473096755.

Adding to 1565532042 its reverse (2402355651), we get a palindrome (3967887693).

The spelling of 1565532042 in words is "one billion, five hundred sixty-five million, five hundred thirty-two thousand, forty-two".