40553271 has 24 divisors (see below), whose sum is σ = 66042480. Its totient is φ = 24575760.

The previous prime is 40553267. The next prime is 40553273. The reversal of 40553271 is 17235504.

It is a happy number.

40553271 is a `hidden beast` number, since 40 + 553 + 2 + 71 = 666.

It is not a de Polignac number, because 40553271 - 2² = 40553267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40553273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2940 + ... + 9473.

It is an arithmetic number, because the mean of its divisors is an integer number (2751770).

Almost surely, 2^40553271 is an apocalyptic number.

40553271 is a deficient number, since it is larger than the sum of its proper divisors (25489209).

40553271 is a wasteful number, since it uses less digits than its factorization.

40553271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12444 (or 12427 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 40553271 is about 6368.1450203336. The cubic root of 40553271 is about 343.5647748785.

Adding to 40553271 its reverse (17235504), we get a palindrome (57788775).

The spelling of 40553271 in words is "forty million, five hundred fifty-three thousand, two hundred seventy-one".