15525420612 has 96 divisors (see below), whose sum is σ = 41985062784. Its totient is φ = 4422297600.

The previous prime is 15525420607. The next prime is 15525420643. The reversal of 15525420612 is 21602452551.

15525420612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113787 + ... + 209757.

It is an arithmetic number, because the mean of its divisors is an integer number (437344404).

Almost surely, 2^15525420612 is an apocalyptic number.

15525420612 is a gapful number since it is divisible by the number (12) 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 15525420612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20992531392).

15525420612 is an abundant number, since it is smaller than the sum of its proper divisors (26459642172).

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

15525420612 is a wasteful number, since it uses less digits than its factorization.

15525420612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96069 (or 96067 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 15525420612 in words is "fifteen billion, five hundred twenty-five million, four hundred twenty thousand, six hundred twelve".