40553851 has 16 divisors (see below), whose sum is σ = 45178560. Its totient is φ = 36167040.

The previous prime is 40553831. The next prime is 40553869. The reversal of 40553851 is 15835504.

It is not a de Polignac number, because 40553851 - 2¹⁷ = 40422779 is a prime.

It is a super-2 number, since 2×40553851² = 3289229661860402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40553831) 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, 48505 + ... + 49333.

It is an arithmetic number, because the mean of its divisors is an integer number (2823660).

Almost surely, 2^40553851 is an apocalyptic number.

40553851 is a deficient number, since it is larger than the sum of its proper divisors (4624709).

40553851 is a wasteful number, since it uses less digits than its factorization.

40553851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 40553851 is about 6368.1905593347. The cubic root of 40553851 is about 343.5664127786.

The spelling of 40553851 in words is "forty million, five hundred fifty-three thousand, eight hundred fifty-one".