8525556380 has 48 divisors (see below), whose sum is σ = 19543265280. Its totient is φ = 3098299200.

The previous prime is 8525556371. The next prime is 8525556409. The reversal of 8525556380 is 836555258.

It is a super-2 number, since 2×8525556380² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 375965 + ... + 397995.

It is an arithmetic number, because the mean of its divisors is an integer number (407151360).

Almost surely, 2^8525556380 is an apocalyptic number.

It is an amenable number.

8525556380 is an abundant number, since it is smaller than the sum of its proper divisors (11017708900).

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

8525556380 is a wasteful number, since it uses less digits than its factorization.

8525556380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23810 (or 23808 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 47.

The square root of 8525556380 is about 92333.9394805615. The cubic root of 8525556380 is about 2042.8708442945.

The spelling of 8525556380 in words is "eight billion, five hundred twenty-five million, five hundred fifty-six thousand, three hundred eighty".