20314725251 has 4 divisors (see below), whose sum is σ = 20315632512. Its totient is φ = 20313817992.

The previous prime is 20314725217. The next prime is 20314725257. The reversal of 20314725251 is 15252741302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20314725251 - 2³⁰ = 19240983427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20314725257) 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, 419171 + ... + 465116.

It is an arithmetic number, because the mean of its divisors is an integer number (5078908128).

Almost surely, 2^20314725251 is an apocalyptic number.

20314725251 is a deficient number, since it is larger than the sum of its proper divisors (907261).

20314725251 is an equidigital number, since it uses as much as digits as its factorization.

20314725251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907260.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 20314725251 in words is "twenty billion, three hundred fourteen million, seven hundred twenty-five thousand, two hundred fifty-one".