1568485057 has 4 divisors (see below), whose sum is σ = 1572623920. Its totient is φ = 1564346196.

The previous prime is 1568485033. The next prime is 1568485067. The reversal of 1568485057 is 7505848651.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1568485057 - 2¹⁵ = 1568452289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1568485057.

It is not an unprimeable number, because it can be changed into a prime (1568485067) 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, 2068863 + ... + 2069620.

It is an arithmetic number, because the mean of its divisors is an integer number (393155980).

Almost surely, 2^1568485057 is an apocalyptic number.

It is an amenable number.

1568485057 is a deficient number, since it is larger than the sum of its proper divisors (4138863).

1568485057 is an equidigital number, since it uses as much as digits as its factorization.

1568485057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138862.

The product of its (nonzero) digits is 1344000, while the sum is 49.

The square root of 1568485057 is about 39604.1040423843. The cubic root of 1568485057 is about 1161.8769299480.

The spelling of 1568485057 in words is "one billion, five hundred sixty-eight million, four hundred eighty-five thousand, fifty-seven".