20261068425 has 72 divisors (see below), whose sum is σ = 39344487000. Its totient is φ = 9907522560.

The previous prime is 20261068423. The next prime is 20261068463. The reversal of 20261068425 is 52486016202.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 14273558784 + 5987509641 = 119472^2 + 77379^2 .

It is not a de Polignac number, because 20261068425 - 2¹ = 20261068423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20261068425.

It is not an unprimeable number, because it can be changed into a prime (20261068423) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 412581 + ... + 459069.

Almost surely, 2^20261068425 is an apocalyptic number.

20261068425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20261068425 is a deficient number, since it is larger than the sum of its proper divisors (19083418575).

20261068425 is a wasteful number, since it uses less digits than its factorization.

20261068425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46667 (or 46659 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 20261068425 in words is "twenty billion, two hundred sixty-one million, sixty-eight thousand, four hundred twenty-five".