48851209 has 6 divisors (see below), whose sum is σ = 53696090. Its totient is φ = 44410080.

The previous prime is 48851203. The next prime is 48851279. The reversal of 48851209 is 90215884.

It can be written as a sum of positive squares in only one way, i.e., 41409225 + 7441984 = 6435^2 + 2728^2 .

It is not a de Polignac number, because 48851209 - 2¹³ = 48843017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48851203) 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, 201744 + ... + 201985.

Almost surely, 2^48851209 is an apocalyptic number.

It is an amenable number.

48851209 is a deficient number, since it is larger than the sum of its proper divisors (4844881).

48851209 is a wasteful number, since it uses less digits than its factorization.

48851209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403751 (or 403740 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 48851209 is about 6989.3639910939. The cubic root of 48851209 is about 365.5598065173.

The spelling of 48851209 in words is "forty-eight million, eight hundred fifty-one thousand, two hundred nine".