7528000000257 has 24 divisors (see below), whose sum is σ = 11862684325440. Its totient is φ = 4562277590880.

The previous prime is 7528000000201. The next prime is 7528000000273. The reversal of 7528000000257 is 7520000008257.

It is not a de Polignac number, because 7528000000257 - 2¹⁸ = 7527999738113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7528000000457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1913844 + ... + 4326522.

It is an arithmetic number, because the mean of its divisors is an integer number (494278513560).

Almost surely, 2^{7528000000257} is an apocalyptic number.

It is an amenable number.

7528000000257 is a deficient number, since it is larger than the sum of its proper divisors (4334684325183).

7528000000257 is a wasteful number, since it uses less digits than its factorization.

7528000000257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444213 (or 2444210 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The spelling of 7528000000257 in words is "seven trillion, five hundred twenty-eight billion, two hundred fifty-seven", and thus it is an aban number.