40585553 has 2 divisors, whose sum is σ = 40585554. Its totient is φ = 40585552.

The previous prime is 40585549. The next prime is 40585583. The reversal of 40585553 is 35558504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20720704 + 19864849 = 4552^2 + 4457^2 .

It is a cyclic number.

It is not a de Polignac number, because 40585553 - 2² = 40585549 is a prime.

It is a super-2 number, since 2×40585553² = 3294374224631618, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40585543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20292776 + 20292777.

It is an arithmetic number, because the mean of its divisors is an integer number (20292777).

Almost surely, 2^40585553 is an apocalyptic number.

It is an amenable number.

40585553 is a deficient number, since it is larger than the sum of its proper divisors (1).

40585553 is an equidigital number, since it uses as much as digits as its factorization.

40585553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 40585553 is about 6370.6791631662. The cubic root of 40585553 is about 343.6559143940.

It can be divided in two parts, 405 and 85553, that added together give a palindrome (85958).

The spelling of 40585553 in words is "forty million, five hundred eighty-five thousand, five hundred fifty-three".