40535455 has 16 divisors (see below), whose sum is σ = 52398720. Its totient is φ = 30004128.

The previous prime is 40535447. The next prime is 40535489. The reversal of 40535455 is 55453504.

It is a cyclic number.

It is not a de Polignac number, because 40535455 - 2³ = 40535447 is a prime.

It is a super-2 number, since 2×40535455² = 3286246224114050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877 + ... + 9046.

It is an arithmetic number, because the mean of its divisors is an integer number (3274920).

Almost surely, 2^40535455 is an apocalyptic number.

40535455 is a deficient number, since it is larger than the sum of its proper divisors (11863265).

40535455 is a wasteful number, since it uses less digits than its factorization.

40535455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9990.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 40535455 is about 6366.7460291738. The cubic root of 40535455 is about 343.5144554965.

Adding to 40535455 its reverse (55453504), we get a palindrome (95988959).

The spelling of 40535455 in words is "forty million, five hundred thirty-five thousand, four hundred fifty-five".