48087665521 has 9 divisors (see below), whose sum is σ = 55940498649. Its totient is φ = 41216683284.

The previous prime is 48087665503. The next prime is 48087665557. The reversal of 48087665521 is 12556678084.

It is a happy number.

The square root of 48087665521 is 219289.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 48087665521 - 2¹¹ = 48087663473 is a prime.

It is a super-3 number, since 3×48087665521³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (48087665921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1519360 + ... + 1550686.

It is an arithmetic number, because the mean of its divisors is an integer number (6215610961).

Almost surely, 2^48087665521 is an apocalyptic number.

48087665521 is the 219289-th square number.

48087665521 is the 109645-th centered octagonal number.

It is an amenable number.

48087665521 is a deficient number, since it is larger than the sum of its proper divisors (7852833128).

48087665521 is an frugal number, since it uses more digits than its factorization.

48087665521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62668 (or 31334 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 48087665521 in words is "forty-eight billion, eighty-seven million, six hundred sixty-five thousand, five hundred twenty-one".