3525015523721 has 2 divisors, whose sum is σ = 3525015523722. Its totient is φ = 3525015523720.

The previous prime is 3525015523669. The next prime is 3525015523853. The reversal of 3525015523721 is 1273255105253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2023008405625 + 1502007118096 = 1422325^2 + 1225564^2 .

It is a cyclic number.

It is not a de Polignac number, because 3525015523721 - 2¹⁸ = 3525015261577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3525018523721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1762507761860 + 1762507761861.

It is an arithmetic number, because the mean of its divisors is an integer number (1762507761861).

Almost surely, 2^{3525015523721} is an apocalyptic number.

It is an amenable number.

3525015523721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3525015523721 is an equidigital number, since it uses as much as digits as its factorization.

3525015523721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315000, while the sum is 41.

The spelling of 3525015523721 in words is "three trillion, five hundred twenty-five billion, fifteen million, five hundred twenty-three thousand, seven hundred twenty-one".