8052721551 has 48 divisors (see below), whose sum is σ = 14455831104. Its totient is φ = 4213804032.

The previous prime is 8052721487. The next prime is 8052721553. The reversal of 8052721551 is 1551272508.

8052721551 is a `hidden beast` number, since 80 + 5 + 2 + 7 + 21 + 551 = 666.

It is not a de Polignac number, because 8052721551 - 2⁶ = 8052721487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8052721553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61980 + ... + 141233.

It is an arithmetic number, because the mean of its divisors is an integer number (301163148).

Almost surely, 2^8052721551 is an apocalyptic number.

8052721551 is a deficient number, since it is larger than the sum of its proper divisors (6403109553).

8052721551 is a wasteful number, since it uses less digits than its factorization.

8052721551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203280 (or 203277 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 36.

The square root of 8052721551 is about 89736.9575537303. The cubic root of 8052721551 is about 2004.3838465075.

The spelling of 8052721551 in words is "eight billion, fifty-two million, seven hundred twenty-one thousand, five hundred fifty-one".