1525516055009 has 2 divisors, whose sum is σ = 1525516055010. Its totient is φ = 1525516055008.

The previous prime is 1525516055003. The next prime is 1525516055083. The reversal of 1525516055009 is 9005506155251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 898296406225 + 627219648784 = 947785^2 + 791972^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525516055009 - 2³² = 1521221087713 is a prime.

It is not a weakly prime, because it can be changed into another prime (1525516055003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762758027504 + 762758027505.

It is an arithmetic number, because the mean of its divisors is an integer number (762758027505).

Almost surely, 2^{1525516055009} is an apocalyptic number.

It is an amenable number.

1525516055009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525516055009 is an equidigital number, since it uses as much as digits as its factorization.

1525516055009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 337500, while the sum is 44.

The spelling of 1525516055009 in words is "one trillion, five hundred twenty-five billion, five hundred sixteen million, fifty-five thousand, nine".