40561255 has 16 divisors (see below), whose sum is σ = 56922624. Its totient is φ = 27165600.

The previous prime is 40561253. The next prime is 40561273. The reversal of 40561255 is 55216504.

It is not a de Polignac number, because 40561255 - 2¹ = 40561253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40561253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11971 + ... + 14980.

It is an arithmetic number, because the mean of its divisors is an integer number (3557664).

Almost surely, 2^40561255 is an apocalyptic number.

40561255 is a deficient number, since it is larger than the sum of its proper divisors (16361369).

40561255 is a wasteful number, since it uses less digits than its factorization.

40561255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27006.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 40561255 is about 6368.7718596288. The cubic root of 40561255 is about 343.5873200485.

Adding to 40561255 its reverse (55216504), we get a palindrome (95777759).

The spelling of 40561255 in words is "forty million, five hundred sixty-one thousand, two hundred fifty-five".