40064553 has 6 divisors (see below), whose sum is σ = 57871034. Its totient is φ = 26709696.

The previous prime is 40064543. The next prime is 40064561. The reversal of 40064553 is 35546004.

It can be written as a sum of positive squares in only one way, i.e., 34433424 + 5631129 = 5868^2 + 2373^2 .

It is not a de Polignac number, because 40064553 - 2⁴ = 40064537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40064513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2225800 + ... + 2225817.

Almost surely, 2^40064553 is an apocalyptic number.

It is an amenable number.

40064553 is a deficient number, since it is larger than the sum of its proper divisors (17806481).

40064553 is a wasteful number, since it uses less digits than its factorization.

40064553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451623 (or 4451620 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 40064553 is about 6329.6566257578. The cubic root of 40064553 is about 342.1790639191.

The spelling of 40064553 in words is "forty million, sixty-four thousand, five hundred fifty-three".