10520531 has 4 divisors (see below), whose sum is σ = 12023472. Its totient is φ = 9017592.

The previous prime is 10520507. The next prime is 10520537. The reversal of 10520531 is 13502501.

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-10520531 is a prime.

It is a super-2 number, since 2×10520531² = 221363145043922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (10520537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751460 + ... + 751473.

It is an arithmetic number, because the mean of its divisors is an integer number (3005868).

Almost surely, 2^10520531 is an apocalyptic number.

10520531 is a deficient number, since it is larger than the sum of its proper divisors (1502941).

10520531 is an equidigital number, since it uses as much as digits as its factorization.

10520531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502940.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 10520531 is about 3243.5368041692. The cubic root of 10520531 is about 219.1185877338.

The spelling of 10520531 in words is "ten million, five hundred twenty thousand, five hundred thirty-one".