40124555 has 4 divisors (see below), whose sum is σ = 48149472. Its totient is φ = 32099640.

The previous prime is 40124537. The next prime is 40124597. The reversal of 40124555 is 55542104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40124555 - 2²⁴ = 23347339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4012451 + ... + 4012460.

It is an arithmetic number, because the mean of its divisors is an integer number (12037368).

Almost surely, 2^40124555 is an apocalyptic number.

40124555 is a deficient number, since it is larger than the sum of its proper divisors (8024917).

40124555 is an equidigital number, since it uses as much as digits as its factorization.

40124555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8024916.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 40124555 is about 6334.3946040644. The cubic root of 40124555 is about 342.3497982771.

Adding to 40124555 its reverse (55542104), we get a palindrome (95666659).

The spelling of 40124555 in words is "forty million, one hundred twenty-four thousand, five hundred fifty-five".