12522325530 has 128 divisors (see below), whose sum is σ = 35412007680. Its totient is φ = 2793922560.

The previous prime is 12522325513. The next prime is 12522325553. The reversal of 12522325530 is 3552322521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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, 1510236 + ... + 1518504.

It is an arithmetic number, because the mean of its divisors is an integer number (276656310).

Almost surely, 2^12522325530 is an apocalyptic number.

12522325530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12522325530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17706003840).

12522325530 is an abundant number, since it is smaller than the sum of its proper divisors (22889682150).

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

12522325530 is a wasteful number, since it uses less digits than its factorization.

12522325530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8656.

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 12522325530 in words is "twelve billion, five hundred twenty-two million, three hundred twenty-five thousand, five hundred thirty".