48512813 has 2 divisors, whose sum is σ = 48512814. Its totient is φ = 48512812.

The previous prime is 48512801. The next prime is 48512831. The reversal of 48512813 is 31821584.

Together with next prime (48512831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48260809 + 252004 = 6947^2 + 502^2 .

It is a cyclic number.

It is not a de Polignac number, because 48512813 - 2¹² = 48508717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48512813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48514813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24256406 + 24256407.

It is an arithmetic number, because the mean of its divisors is an integer number (24256407).

Almost surely, 2^48512813 is an apocalyptic number.

It is an amenable number.

48512813 is a deficient number, since it is larger than the sum of its proper divisors (1).

48512813 is an equidigital number, since it uses as much as digits as its factorization.

48512813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 32.

The square root of 48512813 is about 6965.1139976313. The cubic root of 48512813 is about 364.7137632037.

The spelling of 48512813 in words is "forty-eight million, five hundred twelve thousand, eight hundred thirteen".