48402581 has 2 divisors, whose sum is σ = 48402582. Its totient is φ = 48402580.

The previous prime is 48402559. The next prime is 48402583. The reversal of 48402581 is 18520484.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47748100 + 654481 = 6910^2 + 809^2 .

It is a cyclic number.

It is not a de Polignac number, because 48402581 - 2⁶ = 48402517 is a prime.

It is a super-2 number, since 2×48402581² = 4685619694923122, which contains 22 as substring.

Together with 48402583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48402583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24201290 + 24201291.

It is an arithmetic number, because the mean of its divisors is an integer number (24201291).

Almost surely, 2^48402581 is an apocalyptic number.

It is an amenable number.

48402581 is a deficient number, since it is larger than the sum of its proper divisors (1).

48402581 is an equidigital number, since it uses as much as digits as its factorization.

48402581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 48402581 is about 6957.1963462303. The cubic root of 48402581 is about 364.4373165379.

The spelling of 48402581 in words is "forty-eight million, four hundred two thousand, five hundred eighty-one".