52207831 has 4 divisors (see below), whose sum is σ = 56223832. Its totient is φ = 48191832.

The previous prime is 52207817. The next prime is 52207843. The reversal of 52207831 is 13870225.

52207831 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 not a de Polignac number, because 52207831 - 2¹⁹ = 51683543 is a prime.

It is a super-2 number, since 2×52207831² = 5451315235449122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52207831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52207811) 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, 2007981 + ... + 2008006.

It is an arithmetic number, because the mean of its divisors is an integer number (14055958).

Almost surely, 2^52207831 is an apocalyptic number.

52207831 is a deficient number, since it is larger than the sum of its proper divisors (4016001).

52207831 is a wasteful number, since it uses less digits than its factorization.

52207831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4016000.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 52207831 is about 7225.4986679121. The cubic root of 52207831 is about 373.7477184680.

The spelling of 52207831 in words is "fifty-two million, two hundred seven thousand, eight hundred thirty-one".