49265581 has 2 divisors, whose sum is σ = 49265582. Its totient is φ = 49265580.

The previous prime is 49265543. The next prime is 49265597. The reversal of 49265581 is 18556294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38316100 + 10949481 = 6190^2 + 3309^2 .

It is a cyclic number.

It is not a de Polignac number, because 49265581 - 2¹⁹ = 48741293 is a prime.

It is a super-2 number, since 2×49265581² = 4854194942535122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49265521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24632790 + 24632791.

It is an arithmetic number, because the mean of its divisors is an integer number (24632791).

Almost surely, 2^49265581 is an apocalyptic number.

It is an amenable number.

49265581 is a deficient number, since it is larger than the sum of its proper divisors (1).

49265581 is an equidigital number, since it uses as much as digits as its factorization.

49265581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 40.

The square root of 49265581 is about 7018.9444363095. The cubic root of 49265581 is about 366.5904972175.

The spelling of 49265581 in words is "forty-nine million, two hundred sixty-five thousand, five hundred eighty-one".