4637225491 has 2 divisors, whose sum is σ = 4637225492. Its totient is φ = 4637225490.

The previous prime is 4637225399. The next prime is 4637225539. The reversal of 4637225491 is 1945227364.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4637225491 is a prime.

It is not a weakly prime, because it can be changed into another prime (4637226491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2318612745 + 2318612746.

It is an arithmetic number, because the mean of its divisors is an integer number (2318612746).

Almost surely, 2^4637225491 is an apocalyptic number.

4637225491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4637225491 is an equidigital number, since it uses as much as digits as its factorization.

4637225491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 4637225491 is about 68097.1768210695. The cubic root of 4637225491 is about 1667.5776719820.

The spelling of 4637225491 in words is "four billion, six hundred thirty-seven million, two hundred twenty-five thousand, four hundred ninety-one".