40782503 has 2 divisors, whose sum is σ = 40782504. Its totient is φ = 40782502.

The previous prime is 40782481. The next prime is 40782517. The reversal of 40782503 is 30528704.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40782503 - 2¹² = 40778407 is a prime.

It is a Sophie Germain 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 (40782523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20391251 + 20391252.

It is an arithmetic number, because the mean of its divisors is an integer number (20391252).

Almost surely, 2^40782503 is an apocalyptic number.

40782503 is a deficient number, since it is larger than the sum of its proper divisors (1).

40782503 is an equidigital number, since it uses as much as digits as its factorization.

40782503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 40782503 is about 6386.1179913935. The cubic root of 40782503 is about 344.2109053491.

The spelling of 40782503 in words is "forty million, seven hundred eighty-two thousand, five hundred three".