1525200000001 has 4 divisors (see below), whose sum is σ = 1525334734404. Its totient is φ = 1525065265600.

The previous prime is 1525199999987. The next prime is 1525200000019. The reversal of 1525200000001 is 1000000025251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 520793155600 + 1004406844401 = 721660^2 + 1002201^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525200000001 - 2¹⁹ = 1525199475713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1525200000101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67350220 + ... + 67372861.

It is an arithmetic number, because the mean of its divisors is an integer number (381333683601).

Almost surely, 2^{1525200000001} is an apocalyptic number.

It is an amenable number.

1525200000001 is a deficient number, since it is larger than the sum of its proper divisors (134734403).

1525200000001 is a wasteful number, since it uses less digits than its factorization.

1525200000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134734402.

The product of its (nonzero) digits is 100, while the sum is 16.

Adding to 1525200000001 its reverse (1000000025251), we get a palindrome (2525200025252).

The spelling of 1525200000001 in words is "one trillion, five hundred twenty-five billion, two hundred million, one", and thus it is an aban number.