48561839 has 2 divisors, whose sum is σ = 48561840. Its totient is φ = 48561838.

The previous prime is 48561829. The next prime is 48561859. The reversal of 48561839 is 93816584.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48561839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48561839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48561829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24280919 + 24280920.

It is an arithmetic number, because the mean of its divisors is an integer number (24280920).

Almost surely, 2^48561839 is an apocalyptic number.

48561839 is a deficient number, since it is larger than the sum of its proper divisors (1).

48561839 is an equidigital number, since it uses as much as digits as its factorization.

48561839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 44.

The square root of 48561839 is about 6968.6325057360. The cubic root of 48561839 is about 364.8365791227.

The spelling of 48561839 in words is "forty-eight million, five hundred sixty-one thousand, eight hundred thirty-nine".