50140397 has 2 divisors, whose sum is σ = 50140398. Its totient is φ = 50140396.

The previous prime is 50140393. The next prime is 50140403. The reversal of 50140397 is 79304105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45414121 + 4726276 = 6739^2 + 2174^2 .

It is a cyclic number.

It is not a de Polignac number, because 50140397 - 2² = 50140393 is a prime.

It is a super-2 number, since 2×50140397² = 5028118822635218, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50140393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25070198 + 25070199.

It is an arithmetic number, because the mean of its divisors is an integer number (25070199).

Almost surely, 2^50140397 is an apocalyptic number.

It is an amenable number.

50140397 is a deficient number, since it is larger than the sum of its proper divisors (1).

50140397 is an equidigital number, since it uses as much as digits as its factorization.

50140397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 50140397 is about 7080.9884197053. The cubic root of 50140397 is about 368.7476456040.

The spelling of 50140397 in words is "fifty million, one hundred forty thousand, three hundred ninety-seven".