40515545 has 16 divisors (see below), whose sum is σ = 56271360. Its totient is φ = 27428544.

The previous prime is 40515533. The next prime is 40515569. The reversal of 40515545 is 54551504.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40515545 - 2⁸ = 40515289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4562 + ... + 10091.

It is an arithmetic number, because the mean of its divisors is an integer number (3516960).

Almost surely, 2^40515545 is an apocalyptic number.

It is an amenable number.

40515545 is a deficient number, since it is larger than the sum of its proper divisors (15755815).

40515545 is a wasteful number, since it uses less digits than its factorization.

40515545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14744.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 40515545 is about 6365.1822440524. The cubic root of 40515545 is about 343.4582043875.

The spelling of 40515545 in words is "forty million, five hundred fifteen thousand, five hundred forty-five".