20295244247 has 4 divisors (see below), whose sum is σ = 20296170600. Its totient is φ = 20294317896.

The previous prime is 20295244223. The next prime is 20295244259. The reversal of 20295244247 is 74244259202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74244259202 = 2 ⋅37122129601.

It is a cyclic number.

It is not a de Polignac number, because 20295244247 - 2¹² = 20295240151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20295244217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429497 + ... + 474402.

It is an arithmetic number, because the mean of its divisors is an integer number (5074042650).

Almost surely, 2^20295244247 is an apocalyptic number.

20295244247 is a deficient number, since it is larger than the sum of its proper divisors (926353).

20295244247 is an equidigital number, since it uses as much as digits as its factorization.

20295244247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926352.

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 20295244247 in words is "twenty billion, two hundred ninety-five million, two hundred forty-four thousand, two hundred forty-seven".