49891225 has 6 divisors (see below), whose sum is σ = 61865150. Its totient is φ = 39912960.

The previous prime is 49891213. The next prime is 49891291. The reversal of 49891225 is 52219894.

It can be written as a sum of positive squares in 3 ways, for example, as 5322249 + 44568976 = 2307^2 + 6676^2 .

It is not a de Polignac number, because 49891225 - 2¹⁹ = 49366937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 997800 + ... + 997849.

Almost surely, 2^49891225 is an apocalyptic number.

It is an amenable number.

49891225 is a deficient number, since it is larger than the sum of its proper divisors (11973925).

49891225 is a wasteful number, since it uses less digits than its factorization.

49891225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995659 (or 1995654 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 49891225 is about 7063.3720700527. The cubic root of 49891225 is about 368.1358022144.

The spelling of 49891225 in words is "forty-nine million, eight hundred ninety-one thousand, two hundred twenty-five".