49201609 has 2 divisors, whose sum is σ = 49201610. Its totient is φ = 49201608.

The previous prime is 49201573. The next prime is 49201627. The reversal of 49201609 is 90610294.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33177600 + 16024009 = 5760^2 + 4003^2 .

It is a cyclic number.

It is not a de Polignac number, because 49201609 - 2²¹ = 47104457 is a prime.

It is not a weakly prime, because it can be changed into another prime (49201639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24600804 + 24600805.

It is an arithmetic number, because the mean of its divisors is an integer number (24600805).

Almost surely, 2^49201609 is an apocalyptic number.

It is an amenable number.

49201609 is a deficient number, since it is larger than the sum of its proper divisors (1).

49201609 is an equidigital number, since it uses as much as digits as its factorization.

49201609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 49201609 is about 7014.3858605013. The cubic root of 49201609 is about 366.4317543058.

The spelling of 49201609 in words is "forty-nine million, two hundred one thousand, six hundred nine".