50291861 has 2 divisors, whose sum is σ = 50291862. Its totient is φ = 50291860.

The previous prime is 50291851. The next prime is 50291903. The reversal of 50291861 is 16819205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43692100 + 6599761 = 6610^2 + 2569^2 .

It is a cyclic number.

It is not a de Polignac number, because 50291861 - 2¹⁰ = 50290837 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 (50291851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25145930 + 25145931.

It is an arithmetic number, because the mean of its divisors is an integer number (25145931).

Almost surely, 2^50291861 is an apocalyptic number.

It is an amenable number.

50291861 is a deficient number, since it is larger than the sum of its proper divisors (1).

50291861 is an equidigital number, since it uses as much as digits as its factorization.

50291861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 50291861 is about 7091.6754719883. The cubic root of 50291861 is about 369.1185763753.

The spelling of 50291861 in words is "fifty million, two hundred ninety-one thousand, eight hundred sixty-one".