49917089 has 2 divisors, whose sum is σ = 49917090. Its totient is φ = 49917088.

The previous prime is 49917079. The next prime is 49917167. The reversal of 49917089 is 98071994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27040000 + 22877089 = 5200^2 + 4783^2 .

It is a cyclic number.

It is not a de Polignac number, because 49917089 - 2⁸ = 49916833 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (49917079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24958544 + 24958545.

It is an arithmetic number, because the mean of its divisors is an integer number (24958545).

Almost surely, 2^49917089 is an apocalyptic number.

It is an amenable number.

49917089 is a deficient number, since it is larger than the sum of its proper divisors (1).

49917089 is an equidigital number, since it uses as much as digits as its factorization.

49917089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 49917089 is about 7065.2026864061. The cubic root of 49917089 is about 368.1994060481.

The spelling of 49917089 in words is "forty-nine million, nine hundred seventeen thousand, eighty-nine".