1004404445525 has 24 divisors (see below), whose sum is σ = 1341380890920. Its totient is φ = 741650653440.

The previous prime is 1004404445507. The next prime is 1004404445543. The reversal of 1004404445525 is 5255444044001.

It is an interprime number because it is at equal distance from previous prime (1004404445507) and next prime (1004404445543).

It can be written as a sum of positive squares in 12 ways, for example, as 132642368401 + 871762077124 = 364201^2 + 933682^2 .

It is not a de Polignac number, because 1004404445525 - 2⁶ = 1004404445461 is a prime.

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, 3861479 + ... + 4113371.

It is an arithmetic number, because the mean of its divisors is an integer number (55890870455).

Almost surely, 2^{1004404445525} is an apocalyptic number.

It is an amenable number.

1004404445525 is a deficient number, since it is larger than the sum of its proper divisors (336976445395).

1004404445525 is a wasteful number, since it uses less digits than its factorization.

1004404445525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264185 (or 264180 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 1004404445525 its reverse (5255444044001), we get a palindrome (6259848489526).

The spelling of 1004404445525 in words is "one trillion, four billion, four hundred four million, four hundred forty-five thousand, five hundred twenty-five".