49490505 has 24 divisors (see below), whose sum is σ = 86640840. Its totient is φ = 26131200.

The previous prime is 49490473. The next prime is 49490513. The reversal of 49490505 is 50509494.

49490505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4613904 + 44876601 = 2148^2 + 6699^2 .

It is not a de Polignac number, because 49490505 - 2⁵ = 49490473 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 49490505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 900 + ... + 9989.

It is an arithmetic number, because the mean of its divisors is an integer number (3610035).

Almost surely, 2^49490505 is an apocalyptic number.

49490505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49490505 is a deficient number, since it is larger than the sum of its proper divisors (37150335).

49490505 is a wasteful number, since it uses less digits than its factorization.

49490505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11001 (or 10998 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 49490505 is about 7034.9488271060. The cubic root of 49490505 is about 367.1475449086.

Adding to 49490505 its reverse (50509494), we get a palindrome (99999999).

The spelling of 49490505 in words is "forty-nine million, four hundred ninety thousand, five hundred five".