50540251 has 2 divisors, whose sum is σ = 50540252. Its totient is φ = 50540250.

The previous prime is 50540239. The next prime is 50540279. The reversal of 50540251 is 15204505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50540251 - 2¹⁷ = 50409179 is a prime.

It is a super-2 number, since 2×50540251² = 5108633942286002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50540851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25270125 + 25270126.

It is an arithmetic number, because the mean of its divisors is an integer number (25270126).

Almost surely, 2^50540251 is an apocalyptic number.

50540251 is a deficient number, since it is larger than the sum of its proper divisors (1).

50540251 is an equidigital number, since it uses as much as digits as its factorization.

50540251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 50540251 is about 7109.1666881569. The cubic root of 50540251 is about 369.7252672024.

Adding to 50540251 its reverse (15204505), we get a palindrome (65744756).

The spelling of 50540251 in words is "fifty million, five hundred forty thousand, two hundred fifty-one".