10520457 has 4 divisors (see below), whose sum is σ = 14027280. Its totient is φ = 7013636.

The previous prime is 10520449. The next prime is 10520507. The reversal of 10520457 is 75402501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75402501 = 3 ⋅25134167.

It is a cyclic number.

It is not a de Polignac number, because 10520457 - 2³ = 10520449 is a prime.

It is a super-2 number, since 2×10520457² = 221360030977698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10520557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1753407 + ... + 1753412.

It is an arithmetic number, because the mean of its divisors is an integer number (3506820).

Almost surely, 2^10520457 is an apocalyptic number.

It is an amenable number.

10520457 is a deficient number, since it is larger than the sum of its proper divisors (3506823).

10520457 is an equidigital number, since it uses as much as digits as its factorization.

10520457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506822.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 10520457 is about 3243.5253968483. The cubic root of 10520457 is about 219.1180739824.

Adding to 10520457 its reverse (75402501), we get a palindrome (85922958).

The spelling of 10520457 in words is "ten million, five hundred twenty thousand, four hundred fifty-seven".