50731493 has 2 divisors, whose sum is σ = 50731494. Its totient is φ = 50731492.

The previous prime is 50731489. The next prime is 50731507. The reversal of 50731493 is 39413705.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30283009 + 20448484 = 5503^2 + 4522^2 .

It is a cyclic number.

It is not a de Polignac number, because 50731493 - 2² = 50731489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50731433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25365746 + 25365747.

It is an arithmetic number, because the mean of its divisors is an integer number (25365747).

Almost surely, 2^50731493 is an apocalyptic number.

It is an amenable number.

50731493 is a deficient number, since it is larger than the sum of its proper divisors (1).

50731493 is an equidigital number, since it uses as much as digits as its factorization.

50731493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 50731493 is about 7122.6043691897. The cubic root of 50731493 is about 370.1910214026.

It can be divided in two parts, 507 and 31493, that multiplied together give a palindrome (15966951).

The spelling of 50731493 in words is "fifty million, seven hundred thirty-one thousand, four hundred ninety-three".