49090549 has 2 divisors, whose sum is σ = 49090550. Its totient is φ = 49090548.

The previous prime is 49090541. The next prime is 49090567. The reversal of 49090549 is 94509094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48748324 + 342225 = 6982^2 + 585^2 .

It is a cyclic number.

It is not a de Polignac number, because 49090549 - 2³ = 49090541 is a prime.

It is a super-2 number, since 2×49090549² = 4819764002242802, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is equal to p_2949646 and since 49090549 and 2949646 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49090541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24545274 + 24545275.

It is an arithmetic number, because the mean of its divisors is an integer number (24545275).

Almost surely, 2^49090549 is an apocalyptic number.

It is an amenable number.

49090549 is a deficient number, since it is larger than the sum of its proper divisors (1).

49090549 is an equidigital number, since it uses as much as digits as its factorization.

49090549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 49090549 is about 7006.4648004539. The cubic root of 49090549 is about 366.1558380631.

The spelling of 49090549 in words is "forty-nine million, ninety thousand, five hundred forty-nine".