40551771 has 8 divisors (see below), whose sum is σ = 58228240. Its totient is φ = 24954912.

The previous prime is 40551769. The next prime is 40551787. The reversal of 40551771 is 17715504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40551771 - 2¹ = 40551769 is a prime.

It is a super-2 number, since 2×40551771² = 3288892262472882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40551671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519856 + ... + 519933.

It is an arithmetic number, because the mean of its divisors is an integer number (7278530).

Almost surely, 2^40551771 is an apocalyptic number.

40551771 is a deficient number, since it is larger than the sum of its proper divisors (17676469).

40551771 is a wasteful number, since it uses less digits than its factorization.

40551771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039805.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 40551771 is about 6368.0272455447. The cubic root of 40551771 is about 343.5605388575.

The spelling of 40551771 in words is "forty million, five hundred fifty-one thousand, seven hundred seventy-one".