20251034893 has 2 divisors, whose sum is σ = 20251034894. Its totient is φ = 20251034892.

The previous prime is 20251034891. The next prime is 20251034897. The reversal of 20251034893 is 39843015202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19033513444 + 1217521449 = 137962^2 + 34893^2 .

It is a cyclic number.

It is not a de Polignac number, because 20251034893 - 2¹ = 20251034891 is a prime.

Together with 20251034891, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20251034891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10125517446 + 10125517447.

It is an arithmetic number, because the mean of its divisors is an integer number (10125517447).

Almost surely, 2^20251034893 is an apocalyptic number.

It is an amenable number.

20251034893 is a deficient number, since it is larger than the sum of its proper divisors (1).

20251034893 is an equidigital number, since it uses as much as digits as its factorization.

20251034893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 20251034893 in words is "twenty billion, two hundred fifty-one million, thirty-four thousand, eight hundred ninety-three".