40652551 has 4 divisors (see below), whose sum is σ = 40797504. Its totient is φ = 40507600.

The previous prime is 40652527. The next prime is 40652561. The reversal of 40652551 is 15525604.

40652551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40652551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40652561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72055 + ... + 72616.

It is an arithmetic number, because the mean of its divisors is an integer number (10199376).

Almost surely, 2^40652551 is an apocalyptic number.

40652551 is a deficient number, since it is larger than the sum of its proper divisors (144953).

40652551 is a wasteful number, since it uses less digits than its factorization.

40652551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144952.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 40652551 is about 6375.9353039378. The cubic root of 40652551 is about 343.8449110484.

The spelling of 40652551 in words is "forty million, six hundred fifty-two thousand, five hundred fifty-one".