49088581 has 2 divisors, whose sum is σ = 49088582. Its totient is φ = 49088580.

The previous prime is 49088579. The next prime is 49088597. The reversal of 49088581 is 18588094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30305025 + 18783556 = 5505^2 + 4334^2 .

It is a cyclic number.

It is not a de Polignac number, because 49088581 - 2¹ = 49088579 is a prime.

It is a super-2 number, since 2×49088581² = 4819377569187122, which contains 22 as substring.

Together with 49088579, 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 (49088681) 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, 24544290 + 24544291.

It is an arithmetic number, because the mean of its divisors is an integer number (24544291).

Almost surely, 2^49088581 is an apocalyptic number.

It is an amenable number.

49088581 is a deficient number, since it is larger than the sum of its proper divisors (1).

49088581 is an equidigital number, since it uses as much as digits as its factorization.

49088581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 43.

The square root of 49088581 is about 7006.3243573217. The cubic root of 49088581 is about 366.1509450349.

It can be divided in two parts, 49088 and 581, that multiplied together give a triangular number (28520128 = T₇₅₅₂).

The spelling of 49088581 in words is "forty-nine million, eighty-eight thousand, five hundred eighty-one".