40555061 has 4 divisors (see below), whose sum is σ = 40576224. Its totient is φ = 40533900.

The previous prime is 40555019. The next prime is 40555087. The reversal of 40555061 is 16055504.

40555061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40555061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40555061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40555091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7385 + ... + 11646.

It is an arithmetic number, because the mean of its divisors is an integer number (10144056).

Almost surely, 2^40555061 is an apocalyptic number.

It is an amenable number.

40555061 is a deficient number, since it is larger than the sum of its proper divisors (21163).

40555061 is a wasteful number, since it uses less digits than its factorization.

40555061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21162.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 40555061 is about 6368.2855620646. The cubic root of 40555061 is about 343.5698297268.

The spelling of 40555061 in words is "forty million, five hundred fifty-five thousand, sixty-one".