49931369 has 2 divisors, whose sum is σ = 49931370. Its totient is φ = 49931368.

The previous prime is 49931347. The next prime is 49931381. The reversal of 49931369 is 96313994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31225744 + 18705625 = 5588^2 + 4325^2 .

It is a cyclic number.

It is not a de Polignac number, because 49931369 - 2⁸ = 49931113 is a prime.

It is a super-2 number, since 2×49931369² = 4986283220428322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (49931569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24965684 + 24965685.

It is an arithmetic number, because the mean of its divisors is an integer number (24965685).

Almost surely, 2^49931369 is an apocalyptic number.

It is an amenable number.

49931369 is a deficient number, since it is larger than the sum of its proper divisors (1).

49931369 is an equidigital number, since it uses as much as digits as its factorization.

49931369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 44.

The square root of 49931369 is about 7066.2132008594. The cubic root of 49931369 is about 368.2345135054.

The spelling of 49931369 in words is "forty-nine million, nine hundred thirty-one thousand, three hundred sixty-nine".