49009489 has 2 divisors, whose sum is σ = 49009490. Its totient is φ = 49009488.

The previous prime is 49009469. The next prime is 49009517. The reversal of 49009489 is 98490094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47610000 + 1399489 = 6900^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 49009489 - 2¹⁵ = 48976721 is a prime.

It is a super-2 number, since 2×49009489² = 4803860024082242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49009409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24504744 + 24504745.

It is an arithmetic number, because the mean of its divisors is an integer number (24504745).

Almost surely, 2^49009489 is an apocalyptic number.

It is an amenable number.

49009489 is a deficient number, since it is larger than the sum of its proper divisors (1).

49009489 is an equidigital number, since it uses as much as digits as its factorization.

49009489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 49009489 is about 7000.6777529036. The cubic root of 49009489 is about 365.9541906694.

The spelling of 49009489 in words is "forty-nine million, nine thousand, four hundred eighty-nine".