40452555 has 32 divisors (see below), whose sum is σ = 76043520. Its totient is φ = 18103680.

The previous prime is 40452541. The next prime is 40452563. The reversal of 40452555 is 55525404.

It is not a de Polignac number, because 40452555 - 2¹¹ = 40450507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7285 + ... + 11574.

It is an arithmetic number, because the mean of its divisors is an integer number (2376360).

Almost surely, 2^40452555 is an apocalyptic number.

40452555 is a deficient number, since it is larger than the sum of its proper divisors (35590965).

40452555 is a wasteful number, since it uses less digits than its factorization.

40452555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18891.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 40452555 is about 6360.2323070781. The cubic root of 40452555 is about 343.2801192125.

Adding to 40452555 its reverse (55525404), we get a palindrome (95977959).

The spelling of 40452555 in words is "forty million, four hundred fifty-two thousand, five hundred fifty-five".