50853661 has 2 divisors, whose sum is σ = 50853662. Its totient is φ = 50853660.

The previous prime is 50853641. The next prime is 50853683. The reversal of 50853661 is 16635805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50851161 + 2500 = 7131^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 50853661 - 2¹³ = 50845469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50853641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25426830 + 25426831.

It is an arithmetic number, because the mean of its divisors is an integer number (25426831).

Almost surely, 2^50853661 is an apocalyptic number.

It is an amenable number.

50853661 is a deficient number, since it is larger than the sum of its proper divisors (1).

50853661 is an equidigital number, since it uses as much as digits as its factorization.

50853661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 50853661 is about 7131.1752888286. The cubic root of 50853661 is about 370.4879391524.

The spelling of 50853661 in words is "fifty million, eight hundred fifty-three thousand, six hundred sixty-one".