1564652125 has 8 divisors (see below), whose sum is σ = 1952686008. Its totient is φ = 1251721600.

The previous prime is 1564652123. The next prime is 1564652153. The reversal of 1564652125 is 5212564651.

It can be written as a sum of positive squares in 4 ways, for example, as 4955076 + 1559697049 = 2226^2 + 39493^2 .

It is not a de Polignac number, because 1564652125 - 2¹ = 1564652123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1564652123) 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, 6258484 + ... + 6258733.

It is an arithmetic number, because the mean of its divisors is an integer number (244085751).

Almost surely, 2^1564652125 is an apocalyptic number.

It is an amenable number.

1564652125 is a deficient number, since it is larger than the sum of its proper divisors (388033883).

1564652125 is an equidigital number, since it uses as much as digits as its factorization.

1564652125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12517232 (or 12517222 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 1564652125 is about 39555.6838520079. The cubic root of 1564652125 is about 1160.9297255550.

The spelling of 1564652125 in words is "one billion, five hundred sixty-four million, six hundred fifty-two thousand, one hundred twenty-five".