9025562640 has 80 divisors (see below), whose sum is σ = 28079024256. Its totient is φ = 2398233600.

The previous prime is 9025562629. The next prime is 9025562653. The reversal of 9025562640 is 462655209.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525 + ... + 134355.

Almost surely, 2^9025562640 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 9025562640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14039512128).

9025562640 is an abundant number, since it is smaller than the sum of its proper divisors (19053461616).

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

9025562640 is a wasteful number, since it uses less digits than its factorization.

9025562640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134128 (or 134122 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 9025562640 is about 95002.9612170063. The cubic root of 9025562640 is about 2082.0513108836.

The spelling of 9025562640 in words is "nine billion, twenty-five million, five hundred sixty-two thousand, six hundred forty".