40555707 has 4 divisors (see below), whose sum is σ = 54074280. Its totient is φ = 27037136.

The previous prime is 40555687. The next prime is 40555733. The reversal of 40555707 is 70755504.

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

It is a cyclic number.

It is not a de Polignac number, because 40555707 - 2⁶ = 40555643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40555777) 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, 6759282 + ... + 6759287.

It is an arithmetic number, because the mean of its divisors is an integer number (13518570).

Almost surely, 2^40555707 is an apocalyptic number.

40555707 is a deficient number, since it is larger than the sum of its proper divisors (13518573).

40555707 is a wasteful number, since it uses less digits than its factorization.

40555707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13518572.

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 40555707 is about 6368.3362819499. The cubic root of 40555707 is about 343.5716539540.

Multiplying 40555707 by its sum of digits (33), we get a palindrome (1338338331).

The spelling of 40555707 in words is "forty million, five hundred fifty-five thousand, seven hundred seven".