13257563000 has 128 divisors (see below), whose sum is σ = 34180885440. Its totient is φ = 4772800000.

The previous prime is 13257562993. The next prime is 13257563027. The reversal of 13257563000 is 36575231.

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, 1105034 + ... + 1116966.

Almost surely, 2^13257563000 is an apocalyptic number.

13257563000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13257563000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17090442720).

13257563000 is an abundant number, since it is smaller than the sum of its proper divisors (20923322440).

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

13257563000 is a wasteful number, since it uses less digits than its factorization.

13257563000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12066 (or 12052 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The spelling of 13257563000 in words is "thirteen billion, two hundred fifty-seven million, five hundred sixty-three thousand".