67057765525 has 12 divisors (see below), whose sum is σ = 84204184000. Its totient is φ = 52967144880.

The previous prime is 67057765519. The next prime is 67057765561. The reversal of 67057765525 is 52556775076.

It is not a de Polignac number, because 67057765525 - 2⁹ = 67057765013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16974675 + ... + 16978624.

Almost surely, 2^67057765525 is an apocalyptic number.

It is an amenable number.

67057765525 is a deficient number, since it is larger than the sum of its proper divisors (17146418475).

67057765525 is a wasteful number, since it uses less digits than its factorization.

67057765525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33953388 (or 33953383 counting only the distinct ones).

The product of its (nonzero) digits is 15435000, while the sum is 55.

The spelling of 67057765525 in words is "sixty-seven billion, fifty-seven million, seven hundred sixty-five thousand, five hundred twenty-five".