6525571038 has 64 divisors (see below), whose sum is σ = 15280151040. Its totient is φ = 1818980352.

The previous prime is 6525571037. The next prime is 6525571051. The reversal of 6525571038 is 8301755256.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6525571037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2196418 + ... + 2199386.

It is an arithmetic number, because the mean of its divisors is an integer number (238752360).

Almost surely, 2^6525571038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6525571038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7640075520).

6525571038 is an abundant number, since it is smaller than the sum of its proper divisors (8754580002).

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

6525571038 is a wasteful number, since it uses less digits than its factorization.

6525571038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241.

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 6525571038 is about 80781.0066661712. The cubic root of 6525571038 is about 1868.6996629760.

The spelling of 6525571038 in words is "six billion, five hundred twenty-five million, five hundred seventy-one thousand, thirty-eight".