49057661 has 2 divisors, whose sum is σ = 49057662. Its totient is φ = 49057660.

The previous prime is 49057627. The next prime is 49057667. The reversal of 49057661 is 16675094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 755161 = 6950^2 + 869^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49057661 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49057667) 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, 24528830 + 24528831.

It is an arithmetic number, because the mean of its divisors is an integer number (24528831).

Almost surely, 2^49057661 is an apocalyptic number.

It is an amenable number.

49057661 is a deficient number, since it is larger than the sum of its proper divisors (1).

49057661 is an equidigital number, since it uses as much as digits as its factorization.

49057661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 49057661 is about 7004.1174319110. The cubic root of 49057661 is about 366.0740516253.

The spelling of 49057661 in words is "forty-nine million, fifty-seven thousand, six hundred sixty-one".