12523511040 has 576 divisors, whose sum is σ = 46622822400. Its totient is φ = 2841772032.

The previous prime is 12523510991. The next prime is 12523511069. The reversal of 12523511040 is 4011532521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12523511040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28527141 + ... + 28527579.

It is an arithmetic number, because the mean of its divisors is an integer number (80942400).

Almost surely, 2^12523511040 is an apocalyptic number.

12523511040 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 12523511040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23311411200).

12523511040 is an abundant number, since it is smaller than the sum of its proper divisors (34099311360).

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

12523511040 is a wasteful number, since it uses less digits than its factorization.

12523511040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 12523511040 in words is "twelve billion, five hundred twenty-three million, five hundred eleven thousand, forty".