1000525445 has 12 divisors (see below), whose sum is σ = 1204555140. Its totient is φ = 797811840.

The previous prime is 1000525381. The next prime is 1000525447. The reversal of 1000525445 is 5445250001.

It can be written as a sum of positive squares in 6 ways, for example, as 737339716 + 263185729 = 27154^2 + 16223^2 .

It is not a de Polignac number, because 1000525445 - 2⁶ = 1000525381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000525447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 885641 + ... + 886769.

It is an arithmetic number, because the mean of its divisors is an integer number (100379595).

Almost surely, 2^1000525445 is an apocalyptic number.

It is an amenable number.

1000525445 is a deficient number, since it is larger than the sum of its proper divisors (204029695).

1000525445 is an frugal number, since it uses more digits than its factorization.

1000525445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1000525445 is about 31631.0835255449. The cubic root of 1000525445 is about 1000.1751176653.

Adding to 1000525445 its reverse (5445250001), we get a palindrome (6445775446).

The spelling of 1000525445 in words is "one billion, five hundred twenty-five thousand, four hundred forty-five".