9006515772 has 12 divisors (see below), whose sum is σ = 21015203496. Its totient is φ = 3002171920.

The previous prime is 9006515753. The next prime is 9006515773. The reversal of 9006515772 is 2775156009.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×9006515772² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9006515773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375271479 + ... + 375271502.

It is an arithmetic number, because the mean of its divisors is an integer number (1751266958).

Almost surely, 2^9006515772 is an apocalyptic number.

It is an amenable number.

9006515772 is an abundant number, since it is smaller than the sum of its proper divisors (12008687724).

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

9006515772 is a wasteful number, since it uses less digits than its factorization.

9006515772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750542988 (or 750542986 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 42.

The square root of 9006515772 is about 94902.6647254965. The cubic root of 9006515772 is about 2080.5856779588.

The spelling of 9006515772 in words is "nine billion, six million, five hundred fifteen thousand, seven hundred seventy-two".