40550751 has 12 divisors (see below), whose sum is σ = 58687512. Its totient is φ = 26981136.

The previous prime is 40550749. The next prime is 40550761. The reversal of 40550751 is 15705504.

40550751 is a `hidden beast` number, since 40 + 550 + 75 + 1 = 666.

It is not a de Polignac number, because 40550751 - 2¹ = 40550749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40550761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 805 + ... + 9041.

It is an arithmetic number, because the mean of its divisors is an integer number (4890626).

Almost surely, 2^40550751 is an apocalyptic number.

40550751 is a deficient number, since it is larger than the sum of its proper divisors (18136761).

40550751 is a wasteful number, since it uses less digits than its factorization.

40550751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8790 (or 8787 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 40550751 is about 6367.9471574441. The cubic root of 40550751 is about 343.5576583036.

The spelling of 40550751 in words is "forty million, five hundred fifty thousand, seven hundred fifty-one".