5421998051 has 2 divisors, whose sum is σ = 5421998052. Its totient is φ = 5421998050.

The previous prime is 5421998047. The next prime is 5421998123. The reversal of 5421998051 is 1508991245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5421998051 - 2² = 5421998047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5421997993 and 5421998011.

It is not a weakly prime, because it can be changed into another prime (5421991051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2710999025 + 2710999026.

It is an arithmetic number, because the mean of its divisors is an integer number (2710999026).

Almost surely, 2^5421998051 is an apocalyptic number.

5421998051 is a deficient number, since it is larger than the sum of its proper divisors (1).

5421998051 is an equidigital number, since it uses as much as digits as its factorization.

5421998051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 5421998051 is about 73634.2179356853. The cubic root of 5421998051 is about 1756.7897371649.

The spelling of 5421998051 in words is "five billion, four hundred twenty-one million, nine hundred ninety-eight thousand, fifty-one".