49999825 has 6 divisors (see below), whose sum is σ = 61999814. Its totient is φ = 39999840.

The previous prime is 49999819. The next prime is 49999843. The reversal of 49999825 is 52899994.

It can be written as a sum of positive squares in 3 ways, for example, as 784 + 49999041 = 28^2 + 7071^2 .

It is a de Polignac number, because none of the positive numbers 2^k-49999825 is a prime.

It is a Duffinian number.

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, 999972 + ... + 1000021.

Almost surely, 2^49999825 is an apocalyptic number.

It is an amenable number.

49999825 is a deficient number, since it is larger than the sum of its proper divisors (11999989).

49999825 is a wasteful number, since it uses less digits than its factorization.

49999825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000003 (or 1999998 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 55.

The square root of 49999825 is about 7071.0554374860. The cubic root of 49999825 is about 368.4027200599.

The spelling of 49999825 in words is "forty-nine million, nine hundred ninety-nine thousand, eight hundred twenty-five".