49494521 has 2 divisors, whose sum is σ = 49494522. Its totient is φ = 49494520.

The previous prime is 49494517. The next prime is 49494547. The reversal of 49494521 is 12549494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45414121 + 4080400 = 6739^2 + 2020^2 .

It is a cyclic number.

It is not a de Polignac number, because 49494521 - 2² = 49494517 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (49494121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24747260 + 24747261.

It is an arithmetic number, because the mean of its divisors is an integer number (24747261).

Almost surely, 2^49494521 is an apocalyptic number.

It is an amenable number.

49494521 is a deficient number, since it is larger than the sum of its proper divisors (1).

49494521 is an equidigital number, since it uses as much as digits as its factorization.

49494521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 49494521 is about 7035.2342533849. The cubic root of 49494521 is about 367.1574755990.

The spelling of 49494521 in words is "forty-nine million, four hundred ninety-four thousand, five hundred twenty-one".