49689425 has 6 divisors (see below), whose sum is σ = 61614918. Its totient is φ = 39751520.

The previous prime is 49689397. The next prime is 49689439. The reversal of 49689425 is 52498694.

It can be written as a sum of positive squares in 3 ways, for example, as 1024 + 49688401 = 32^2 + 7049^2 .

It is not a de Polignac number, because 49689425 - 2⁸ = 49689169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49689425.

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, 993764 + ... + 993813.

It is an arithmetic number, because the mean of its divisors is an integer number (10269153).

Almost surely, 2^49689425 is an apocalyptic number.

It is an amenable number.

49689425 is a deficient number, since it is larger than the sum of its proper divisors (11925493).

49689425 is a wasteful number, since it uses less digits than its factorization.

49689425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987587 (or 1987582 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 49689425 is about 7049.0726340420. The cubic root of 49689425 is about 367.6387863362.

The spelling of 49689425 in words is "forty-nine million, six hundred eighty-nine thousand, four hundred twenty-five".