48572809 has 2 divisors, whose sum is σ = 48572810. Its totient is φ = 48572808.

The previous prime is 48572807. The next prime is 48572837. The reversal of 48572809 is 90827584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25532809 + 23040000 = 5053^2 + 4800^2 .

It is a cyclic number.

It is not a de Polignac number, because 48572809 - 2¹ = 48572807 is a prime.

Together with 48572807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (48572807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24286404 + 24286405.

It is an arithmetic number, because the mean of its divisors is an integer number (24286405).

Almost surely, 2^48572809 is an apocalyptic number.

It is an amenable number.

48572809 is a deficient number, since it is larger than the sum of its proper divisors (1).

48572809 is an equidigital number, since it uses as much as digits as its factorization.

48572809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 48572809 is about 6969.4195597625. The cubic root of 48572809 is about 364.8640489497.

The spelling of 48572809 in words is "forty-eight million, five hundred seventy-two thousand, eight hundred nine".