40555953 has 12 divisors (see below), whose sum is σ = 59384260. Its totient is φ = 26666496.

The previous prime is 40555927. The next prime is 40555961. The reversal of 40555953 is 35955504.

It can be written as a sum of positive squares in 2 ways, for example, as 33837489 + 6718464 = 5817^2 + 2592^2 .

It is not a de Polignac number, because 40555953 - 2¹⁰ = 40554929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40555913) 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, 30208 + ... + 31521.

Almost surely, 2^40555953 is an apocalyptic number.

It is an amenable number.

40555953 is a deficient number, since it is larger than the sum of its proper divisors (18828307).

40555953 is a wasteful number, since it uses less digits than its factorization.

40555953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61808 (or 61805 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 40555953 is about 6368.3555962273. The cubic root of 40555953 is about 343.5723486236.

The spelling of 40555953 in words is "forty million, five hundred fifty-five thousand, nine hundred fifty-three".