20825199258 has 16 divisors (see below), whose sum is σ = 43461285696. Its totient is φ = 6639918560.

The previous prime is 20825199253. The next prime is 20825199259. The reversal of 20825199258 is 85299152802.

It is a super-3 number, since 3×20825199258³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20825199258.

It is not an unprimeable number, because it can be changed into a prime (20825199253) 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, 75453483 + ... + 75453758.

It is an arithmetic number, because the mean of its divisors is an integer number (2716330356).

Almost surely, 2^20825199258 is an apocalyptic number.

20825199258 is an abundant number, since it is smaller than the sum of its proper divisors (22636086438).

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

20825199258 is a wasteful number, since it uses less digits than its factorization.

20825199258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150907269.

The product of its (nonzero) digits is 1036800, while the sum is 51.

The spelling of 20825199258 in words is "twenty billion, eight hundred twenty-five million, one hundred ninety-nine thousand, two hundred fifty-eight".