10520427 has 4 divisors (see below), whose sum is σ = 14027240. Its totient is φ = 7013616.

The previous prime is 10520401. The next prime is 10520429. The reversal of 10520427 is 72402501.

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

It is not a de Polignac number, because 10520427 - 2¹⁹ = 9996139 is a prime.

It is a super-2 number, since 2×10520427² = 221358768524658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10520429) 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, 1753402 + ... + 1753407.

It is an arithmetic number, because the mean of its divisors is an integer number (3506810).

Almost surely, 2^10520427 is an apocalyptic number.

10520427 is a deficient number, since it is larger than the sum of its proper divisors (3506813).

10520427 is an equidigital number, since it uses as much as digits as its factorization.

10520427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506812.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 10520427 is about 3243.5207722473. The cubic root of 10520427 is about 219.1178657041.

Adding to 10520427 its reverse (72402501), we get a palindrome (82922928).

The spelling of 10520427 in words is "ten million, five hundred twenty thousand, four hundred twenty-seven".