40056505 has 8 divisors (see below), whose sum is σ = 50895432. Its totient is φ = 30160128.

The previous prime is 40056493. The next prime is 40056517. The reversal of 40056505 is 50565004.

It is an interprime number because it is at equal distance from previous prime (40056493) and next prime (40056517).

It can be written as a sum of positive squares in 4 ways, for example, as 12766329 + 27290176 = 3573^2 + 5224^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40056505 - 2⁵ = 40056473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40056505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235542 + ... + 235711.

It is an arithmetic number, because the mean of its divisors is an integer number (6361929).

Almost surely, 2^40056505 is an apocalyptic number.

It is an amenable number.

40056505 is a deficient number, since it is larger than the sum of its proper divisors (10838927).

40056505 is a wasteful number, since it uses less digits than its factorization.

40056505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471275.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 40056505 is about 6329.0208563411. The cubic root of 40056505 is about 342.1561505513.

The spelling of 40056505 in words is "forty million, fifty-six thousand, five hundred five".