48698581 has 2 divisors, whose sum is σ = 48698582. Its totient is φ = 48698580.

The previous prime is 48698579. The next prime is 48698603. The reversal of 48698581 is 18589684.

48698581 = 4934² + 4935².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24354225 + 24344356 = 4935^2 + 4934^2 .

It is a cyclic number.

It is not a de Polignac number, because 48698581 - 2¹ = 48698579 is a prime.

It is a super-2 number, since 2×48698581² = 4743103582827122, which contains 22 as substring.

Together with 48698579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48698381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24349290 + 24349291.

It is an arithmetic number, because the mean of its divisors is an integer number (24349291).

Almost surely, 2^48698581 is an apocalyptic number.

48698581 is the 4935-th centered square number.

It is an amenable number.

48698581 is a deficient number, since it is larger than the sum of its proper divisors (1).

48698581 is an equidigital number, since it uses as much as digits as its factorization.

48698581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 49.

The square root of 48698581 is about 6978.4368593547. The cubic root of 48698581 is about 365.1786977614.

The spelling of 48698581 in words is "forty-eight million, six hundred ninety-eight thousand, five hundred eighty-one".