12553722500 has 60 divisors (see below), whose sum is σ = 29948226000. Its totient is φ = 4564980000.

The previous prime is 12553722491. The next prime is 12553722551. The reversal of 12553722500 is 522735521.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 200750 + ... + 255749.

It is an arithmetic number, because the mean of its divisors is an integer number (499137100).

Almost surely, 2^12553722500 is an apocalyptic number.

12553722500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12553722500 is an abundant number, since it is smaller than the sum of its proper divisors (17394503500).

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

12553722500 is a wasteful number, since it uses less digits than its factorization.

12553722500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456534 (or 456517 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The spelling of 12553722500 in words is "twelve billion, five hundred fifty-three million, seven hundred twenty-two thousand, five hundred".