6521531060125 has 32 divisors (see below), whose sum is σ = 8721454944384. Its totient is φ = 4851168544000.

The previous prime is 6521531060119. The next prime is 6521531060179. The reversal of 6521531060125 is 5210601351256.

It is a happy number.

It is not a de Polignac number, because 6521531060125 - 2⁹ = 6521531059613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18311311 + ... + 18664060.

It is an arithmetic number, because the mean of its divisors is an integer number (272545467012).

Almost surely, 2^{6521531060125} is an apocalyptic number.

It is an amenable number.

6521531060125 is a deficient number, since it is larger than the sum of its proper divisors (2199923884259).

6521531060125 is a wasteful number, since it uses less digits than its factorization.

6521531060125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36975486 (or 36975476 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 6521531060125 in words is "six trillion, five hundred twenty-one billion, five hundred thirty-one million, sixty thousand, one hundred twenty-five".