40041551 has 16 divisors (see below), whose sum is σ = 46061568. Its totient is φ = 34452000.

The previous prime is 40041527. The next prime is 40041577. The reversal of 40041551 is 15514004.

It is a de Polignac number, because none of the positive numbers 2^k-40041551 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 (40041251) 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, 24770 + ... + 26336.

It is an arithmetic number, because the mean of its divisors is an integer number (2878848).

Almost surely, 2^40041551 is an apocalyptic number.

40041551 is a deficient number, since it is larger than the sum of its proper divisors (6020017).

40041551 is a wasteful number, since it uses less digits than its factorization.

40041551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 40041551 is about 6327.8393626893. The cubic root of 40041551 is about 342.1135670398.

Adding to 40041551 its reverse (15514004), we get a palindrome (55555555).

It can be divided in two parts, 4004 and 1551, that added together give a palindrome (5555).

The spelling of 40041551 in words is "forty million, forty-one thousand, five hundred fifty-one".