1325566525 has 24 divisors (see below), whose sum is σ = 1672251104. Its totient is φ = 1042113600.

The previous prime is 1325566513. The next prime is 1325566553. The reversal of 1325566525 is 5256655231.

It is a happy number.

It is not a de Polignac number, because 1325566525 - 2⁵ = 1325566493 is a prime.

It is a super-2 number, since 2×1325566525² = 3514253224401151250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1026130 + ... + 1027420.

Almost surely, 2^1325566525 is an apocalyptic number.

It is an amenable number.

1325566525 is a deficient number, since it is larger than the sum of its proper divisors (346684579).

1325566525 is a wasteful number, since it uses less digits than its factorization.

1325566525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981 (or 1976 counting only the distinct ones).

The product of its digits is 270000, while the sum is 40.

The square root of 1325566525 is about 36408.3304341191. The cubic root of 1325566525 is about 1098.5011334944.

The spelling of 1325566525 in words is "one billion, three hundred twenty-five million, five hundred sixty-six thousand, five hundred twenty-five".