20250472685 has 8 divisors (see below), whose sum is σ = 24392966400. Its totient is φ = 16138778704.

The previous prime is 20250472681. The next prime is 20250472721. The reversal of 20250472685 is 58627405202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20250472685 - 2² = 20250472681 is a prime.

It is a super-2 number, since 2×20250472685² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20250472681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7698485 + ... + 7701114.

It is an arithmetic number, because the mean of its divisors is an integer number (3049120800).

Almost surely, 2^20250472685 is an apocalyptic number.

It is an amenable number.

20250472685 is a deficient number, since it is larger than the sum of its proper divisors (4142493715).

20250472685 is a wasteful number, since it uses less digits than its factorization.

20250472685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15399867.

The product of its (nonzero) digits is 268800, while the sum is 41.

Adding to 20250472685 its reverse (58627405202), we get a palindrome (78877877887).

The spelling of 20250472685 in words is "twenty billion, two hundred fifty million, four hundred seventy-two thousand, six hundred eighty-five".