8525078430 has 128 divisors (see below), whose sum is σ = 23178203136. Its totient is φ = 1988044800.

The previous prime is 8525078413. The next prime is 8525078431. The reversal of 8525078430 is 348705258.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8525078431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1767382 + ... + 1772198.

It is an arithmetic number, because the mean of its divisors is an integer number (181079712).

Almost surely, 2^8525078430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8525078430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11589101568).

8525078430 is an abundant number, since it is smaller than the sum of its proper divisors (14653124706).

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

8525078430 is a wasteful number, since it uses less digits than its factorization.

8525078430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042.

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 8525078430 is about 92331.3512843823. The cubic root of 8525078430 is about 2042.8326685508.

The spelling of 8525078430 in words is "eight billion, five hundred twenty-five million, seventy-eight thousand, four hundred thirty".