40508753 has 2 divisors, whose sum is σ = 40508754. Its totient is φ = 40508752.

The previous prime is 40508719. The next prime is 40508759. The reversal of 40508753 is 35780504.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37368769 + 3139984 = 6113^2 + 1772^2 .

It is a cyclic number.

It is not a de Polignac number, because 40508753 - 2¹⁶ = 40443217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40508759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20254376 + 20254377.

It is an arithmetic number, because the mean of its divisors is an integer number (20254377).

Almost surely, 2^40508753 is an apocalyptic number.

It is an amenable number.

40508753 is a deficient number, since it is larger than the sum of its proper divisors (1).

40508753 is an equidigital number, since it uses as much as digits as its factorization.

40508753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 40508753 is about 6364.6486941543. The cubic root of 40508753 is about 343.4390109438.

The spelling of 40508753 in words is "forty million, five hundred eight thousand, seven hundred fifty-three".