49987825 has 6 divisors (see below), whose sum is σ = 61984934. Its totient is φ = 39990240.

The previous prime is 49987823. The next prime is 49987843. The reversal of 49987825 is 52878994.

It can be written as a sum of positive squares in 3 ways, for example, as 651249 + 49336576 = 807^2 + 7024^2 .

It is not a de Polignac number, because 49987825 - 2¹ = 49987823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49987823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 999732 + ... + 999781.

Almost surely, 2^49987825 is an apocalyptic number.

It is an amenable number.

49987825 is a deficient number, since it is larger than the sum of its proper divisors (11997109).

49987825 is a wasteful number, since it uses less digits than its factorization.

49987825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999523 (or 1999518 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The square root of 49987825 is about 7070.2068569456. The cubic root of 49987825 is about 368.3732453810.

The spelling of 49987825 in words is "forty-nine million, nine hundred eighty-seven thousand, eight hundred twenty-five".