3525587509421 has 2 divisors, whose sum is σ = 3525587509422. Its totient is φ = 3525587509420.

The previous prime is 3525587509399. The next prime is 3525587509519. The reversal of 3525587509421 is 1249057855253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2752795314025 + 772792195396 = 1659155^2 + 879086^2 .

It is a cyclic number.

It is not a de Polignac number, because 3525587509421 - 2¹⁰ = 3525587508397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3525587509321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1762793754710 + 1762793754711.

It is an arithmetic number, because the mean of its divisors is an integer number (1762793754711).

Almost surely, 2^{3525587509421} is an apocalyptic number.

It is an amenable number.

3525587509421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3525587509421 is an equidigital number, since it uses as much as digits as its factorization.

3525587509421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120000, while the sum is 56.

The spelling of 3525587509421 in words is "three trillion, five hundred twenty-five billion, five hundred eighty-seven million, five hundred nine thousand, four hundred twenty-one".