40052531 has 8 divisors (see below), whose sum is σ = 41244000. Its totient is φ = 38871360.

The previous prime is 40052521. The next prime is 40052549. The reversal of 40052531 is 13525004.

40052531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40052531 is a prime.

It is a super-2 number, since 2×40052531² = 3208410479011922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40052521) 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 7 ways as a sum of consecutive naturals, for example, 5705 + ... + 10613.

It is an arithmetic number, because the mean of its divisors is an integer number (5155500).

Almost surely, 2^40052531 is an apocalyptic number.

40052531 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40052531 is a deficient number, since it is larger than the sum of its proper divisors (1191469).

40052531 is a wasteful number, since it uses less digits than its factorization.

40052531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 40052531 is about 6328.7068979374. The cubic root of 40052531 is about 342.1448350899.

Adding to 40052531 its reverse (13525004), we get a palindrome (53577535).

The spelling of 40052531 in words is "forty million, fifty-two thousand, five hundred thirty-one".