49979261 has 2 divisors, whose sum is σ = 49979262. Its totient is φ = 49979260.

The previous prime is 49979249. The next prime is 49979317. The reversal of 49979261 is 16297994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33120025 + 16859236 = 5755^2 + 4106^2 .

It is a cyclic number.

It is not a de Polignac number, because 49979261 - 2¹⁰ = 49978237 is a prime.

It is a super-2 number, since 2×49979261² = 4995853060212242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49978261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24989630 + 24989631.

It is an arithmetic number, because the mean of its divisors is an integer number (24989631).

Almost surely, 2^49979261 is an apocalyptic number.

It is an amenable number.

49979261 is a deficient number, since it is larger than the sum of its proper divisors (1).

49979261 is an equidigital number, since it uses as much as digits as its factorization.

49979261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 47.

The square root of 49979261 is about 7069.6011910150. The cubic root of 49979261 is about 368.3522074006.

The spelling of 49979261 in words is "forty-nine million, nine hundred seventy-nine thousand, two hundred sixty-one".