1564355425 has 12 divisors (see below), whose sum is σ = 1967124096. Its totient is φ = 1233856400.

The previous prime is 1564355423. The next prime is 1564355447. The reversal of 1564355425 is 5245534651.

It is not a de Polignac number, because 1564355425 - 2¹ = 1564355423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1564355423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438889 + ... + 442438.

It is an arithmetic number, because the mean of its divisors is an integer number (163927008).

Almost surely, 2^1564355425 is an apocalyptic number.

It is an amenable number.

1564355425 is a deficient number, since it is larger than the sum of its proper divisors (402768671).

1564355425 is an equidigital number, since it uses as much as digits as its factorization.

1564355425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881408 (or 881403 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

The square root of 1564355425 is about 39551.9332650125. The cubic root of 1564355425 is about 1160.8563397805.

The spelling of 1564355425 in words is "one billion, five hundred sixty-four million, three hundred fifty-five thousand, four hundred twenty-five".