40055519 has 16 divisors (see below), whose sum is σ = 48642048. Its totient is φ = 32199552.

The previous prime is 40055507. The next prime is 40055539. The reversal of 40055519 is 91555004.

It is not a de Polignac number, because 40055519 - 2¹² = 40051423 is a prime.

It is a super-2 number, since 2×40055519² = 3208889204718722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40055491 and 40055500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40055539) 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, 54734 + ... + 55460.

It is an arithmetic number, because the mean of its divisors is an integer number (3040128).

Almost surely, 2^40055519 is an apocalyptic number.

40055519 is a deficient number, since it is larger than the sum of its proper divisors (8586529).

40055519 is a wasteful number, since it uses less digits than its factorization.

40055519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 40055519 is about 6328.9429607163. The cubic root of 40055519 is about 342.1533431110.

The spelling of 40055519 in words is "forty million, fifty-five thousand, five hundred nineteen".