56498892421 has 2 divisors, whose sum is σ = 56498892422. Its totient is φ = 56498892420.

The previous prime is 56498892419. The next prime is 56498892553. The reversal of 56498892421 is 12429889465.

It is a happy number.

56498892421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46835019396 + 9663873025 = 216414^2 + 98305^2 .

It is a cyclic number.

It is not a de Polignac number, because 56498892421 - 2¹ = 56498892419 is a prime.

Together with 56498892419, 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 (56498890421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28249446210 + 28249446211.

It is an arithmetic number, because the mean of its divisors is an integer number (28249446211).

Almost surely, 2^56498892421 is an apocalyptic number.

It is an amenable number.

56498892421 is a deficient number, since it is larger than the sum of its proper divisors (1).

56498892421 is an equidigital number, since it uses as much as digits as its factorization.

56498892421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9953280, while the sum is 58.

The spelling of 56498892421 in words is "fifty-six billion, four hundred ninety-eight million, eight hundred ninety-two thousand, four hundred twenty-one".