49249249525 has 54 divisors (see below), whose sum is σ = 71520438210. Its totient is φ = 33543195840.

The previous prime is 49249249513. The next prime is 49249249561. The reversal of 49249249525 is 52594294294.

It can be written as a sum of positive squares in 3 ways, for example, as 11776807441 + 37472442084 = 108521^2 + 193578^2 .

It is not a de Polignac number, because 49249249525 - 2⁷ = 49249249397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 117539766 + ... + 117540184.

Almost surely, 2^49249249525 is an apocalyptic number.

It is an amenable number.

49249249525 is a deficient number, since it is larger than the sum of its proper divisors (22271188685).

49249249525 is an equidigital number, since it uses as much as digits as its factorization.

49249249525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 660 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 55.

The spelling of 49249249525 in words is "forty-nine billion, two hundred forty-nine million, two hundred forty-nine thousand, five hundred twenty-five".