40216553 has 4 divisors (see below), whose sum is σ = 43310148. Its totient is φ = 37122960.

The previous prime is 40216541. The next prime is 40216619. The reversal of 40216553 is 35561204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22306729 + 17909824 = 4723^2 + 4232^2 .

It is a cyclic number.

It is not a de Polignac number, because 40216553 - 2¹⁰ = 40215529 is a prime.

It is a super-2 number, since 2×40216553² = 3234742270403618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40216513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1546778 + ... + 1546803.

It is an arithmetic number, because the mean of its divisors is an integer number (10827537).

Almost surely, 2^40216553 is an apocalyptic number.

It is an amenable number.

40216553 is a deficient number, since it is larger than the sum of its proper divisors (3093595).

40216553 is a wasteful number, since it uses less digits than its factorization.

40216553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3093594.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 40216553 is about 6341.6522295061. The cubic root of 40216553 is about 342.6112462963.

Adding to 40216553 its reverse (35561204), we get a palindrome (75777757).

The spelling of 40216553 in words is "forty million, two hundred sixteen thousand, five hundred fifty-three".