9125207520 has 384 divisors, whose sum is σ = 35552079360. Its totient is φ = 1934254080.

The previous prime is 9125207503. The next prime is 9125207561. The reversal of 9125207520 is 257025219.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 1300662 + ... + 1307658.

It is an arithmetic number, because the mean of its divisors is an integer number (92583540).

Almost surely, 2^9125207520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9125207520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17776039680).

9125207520 is an abundant number, since it is smaller than the sum of its proper divisors (26426871840).

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

9125207520 is a wasteful number, since it uses less digits than its factorization.

9125207520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7058 (or 7050 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 9125207520 is about 95525.9520758626. The cubic root of 9125207520 is about 2089.6854391019.

The spelling of 9125207520 in words is "nine billion, one hundred twenty-five million, two hundred seven thousand, five hundred twenty".