12510527550 has 24 divisors (see below), whose sum is σ = 31026108696. Its totient is φ = 3336140640.

The previous prime is 12510527537. The next prime is 12510527569. The reversal of 12510527550 is 5572501521.

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, 41701609 + ... + 41701908.

It is an arithmetic number, because the mean of its divisors is an integer number (1292754529).

Almost surely, 2^12510527550 is an apocalyptic number.

12510527550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12510527550 is an abundant number, since it is smaller than the sum of its proper divisors (18515581146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12510527550 is a wasteful number, since it uses less digits than its factorization.

12510527550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83403532 (or 83403527 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 33.

The spelling of 12510527550 in words is "twelve billion, five hundred ten million, five hundred twenty-seven thousand, five hundred fifty".