49581481 has 2 divisors, whose sum is σ = 49581482. Its totient is φ = 49581480.

The previous prime is 49581473. The next prime is 49581487. The reversal of 49581481 is 18418594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49561600 + 19881 = 7040^2 + 141^2 .

It is a cyclic number.

It is not a de Polignac number, because 49581481 - 2³ = 49581473 is a prime.

It is a super-2 number, since 2×49581481² = 4916646516306722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49581487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24790740 + 24790741.

It is an arithmetic number, because the mean of its divisors is an integer number (24790741).

Almost surely, 2^49581481 is an apocalyptic number.

It is an amenable number.

49581481 is a deficient number, since it is larger than the sum of its proper divisors (1).

49581481 is an equidigital number, since it uses as much as digits as its factorization.

49581481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 40.

The square root of 49581481 is about 7041.4118612676. The cubic root of 49581481 is about 367.3723770527.

The spelling of 49581481 in words is "forty-nine million, five hundred eighty-one thousand, four hundred eighty-one".