8525423490 has 16 divisors (see below), whose sum is σ = 20461016448. Its totient is φ = 2273446256.

The previous prime is 8525423453. The next prime is 8525423497. The reversal of 8525423490 is 943245258.

It is not an unprimeable number, because it can be changed into a prime (8525423497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142090362 + ... + 142090421.

It is an arithmetic number, because the mean of its divisors is an integer number (1278813528).

Almost surely, 2^8525423490 is an apocalyptic number.

8525423490 is an abundant number, since it is smaller than the sum of its proper divisors (11935592958).

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

8525423490 is a wasteful number, since it uses less digits than its factorization.

8525423490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284180793.

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 8525423490 is about 92333.2198615428. The cubic root of 8525423490 is about 2042.8602299914.

The spelling of 8525423490 in words is "eight billion, five hundred twenty-five million, four hundred twenty-three thousand, four hundred ninety".