40955851 has 2 divisors, whose sum is σ = 40955852. Its totient is φ = 40955850.

The previous prime is 40955819. The next prime is 40955857. The reversal of 40955851 is 15855904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40955851 - 2⁵ = 40955819 is a prime.

It is a super-2 number, since 2×40955851² = 3354763462268402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40955851.

It is not a weakly prime, because it can be changed into another prime (40955857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20477925 + 20477926.

It is an arithmetic number, because the mean of its divisors is an integer number (20477926).

Almost surely, 2^40955851 is an apocalyptic number.

40955851 is a deficient number, since it is larger than the sum of its proper divisors (1).

40955851 is an equidigital number, since it uses as much as digits as its factorization.

40955851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 40955851 is about 6399.6758511662. The cubic root of 40955851 is about 344.6979110153.

The spelling of 40955851 in words is "forty million, nine hundred fifty-five thousand, eight hundred fifty-one".