49620881 has 2 divisors, whose sum is σ = 49620882. Its totient is φ = 49620880.

The previous prime is 49620869. The next prime is 49620887. The reversal of 49620881 is 18802694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39438400 + 10182481 = 6280^2 + 3191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49620881 is a prime.

It is a super-2 number, since 2×49620881² = 4924463662432322, 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 (49620887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24810440 + 24810441.

It is an arithmetic number, because the mean of its divisors is an integer number (24810441).

Almost surely, 2^49620881 is an apocalyptic number.

It is an amenable number.

49620881 is a deficient number, since it is larger than the sum of its proper divisors (1).

49620881 is an equidigital number, since it uses as much as digits as its factorization.

49620881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 49620881 is about 7044.2090400555. The cubic root of 49620881 is about 367.4696622958.

The spelling of 49620881 in words is "forty-nine million, six hundred twenty thousand, eight hundred eighty-one".