40502953 has 2 divisors, whose sum is σ = 40502954. Its totient is φ = 40502952.

The previous prime is 40502941. The next prime is 40502981. The reversal of 40502953 is 35920504.

It is an a-pointer prime, because the next prime (40502981) can be obtained adding 40502953 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39275289 + 1227664 = 6267^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 40502953 - 2²⁵ = 6948521 is a prime.

It is a super-3 number, since 3×40502953³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (40502923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20251476 + 20251477.

It is an arithmetic number, because the mean of its divisors is an integer number (20251477).

Almost surely, 2^40502953 is an apocalyptic number.

It is an amenable number.

40502953 is a deficient number, since it is larger than the sum of its proper divisors (1).

40502953 is an equidigital number, since it uses as much as digits as its factorization.

40502953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 40502953 is about 6364.1930360416. The cubic root of 40502953 is about 343.4226190845.

The spelling of 40502953 in words is "forty million, five hundred two thousand, nine hundred fifty-three".