4995194251 has 2 divisors, whose sum is σ = 4995194252. Its totient is φ = 4995194250.

The previous prime is 4995194209. The next prime is 4995194273. The reversal of 4995194251 is 1524915994.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4995194251 - 2⁹ = 4995193739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4995194195 and 4995194204.

It is not a weakly prime, because it can be changed into another prime (4995194051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2497597125 + 2497597126.

It is an arithmetic number, because the mean of its divisors is an integer number (2497597126).

Almost surely, 2^4995194251 is an apocalyptic number.

4995194251 is a deficient number, since it is larger than the sum of its proper divisors (1).

4995194251 is an equidigital number, since it uses as much as digits as its factorization.

4995194251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 49.

The square root of 4995194251 is about 70676.6881722679. The cubic root of 4995194251 is about 1709.4279233820.

The spelling of 4995194251 in words is "four billion, nine hundred ninety-five million, one hundred ninety-four thousand, two hundred fifty-one".