4949551 has 2 divisors, whose sum is σ = 4949552. Its totient is φ = 4949550.

The previous prime is 4949521. The next prime is 4949579. The reversal of 4949551 is 1559494.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4949551 - 2⁷ = 4949423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4949551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4949501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2474775 + 2474776.

It is an arithmetic number, because the mean of its divisors is an integer number (2474776).

Almost surely, 2^4949551 is an apocalyptic number.

4949551 is a deficient number, since it is larger than the sum of its proper divisors (1).

4949551 is an equidigital number, since it uses as much as digits as its factorization.

4949551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 37.

The square root of 4949551 is about 2224.7586385943. The cubic root of 4949551 is about 170.4205389916.

The spelling of 4949551 in words is "four million, nine hundred forty-nine thousand, five hundred fifty-one".