50857501 has 2 divisors, whose sum is σ = 50857502. Its totient is φ = 50857500.

The previous prime is 50857493. The next prime is 50857511. The reversal of 50857501 is 10575805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32376100 + 18481401 = 5690^2 + 4299^2 .

It is a cyclic number.

It is not a de Polignac number, because 50857501 - 2³ = 50857493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50857511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25428750 + 25428751.

It is an arithmetic number, because the mean of its divisors is an integer number (25428751).

Almost surely, 2^50857501 is an apocalyptic number.

It is an amenable number.

50857501 is a deficient number, since it is larger than the sum of its proper divisors (1).

50857501 is an equidigital number, since it uses as much as digits as its factorization.

50857501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7000, while the sum is 31.

The square root of 50857501 is about 7131.4445240779. Note that the first 3 decimals coincide. The cubic root of 50857501 is about 370.4972641964.

The spelling of 50857501 in words is "fifty million, eight hundred fifty-seven thousand, five hundred one".