10513225 has 24 divisors (see below), whose sum is σ = 14295960. Its totient is φ = 7633920.

The previous prime is 10513219. The next prime is 10513267. The reversal of 10513225 is 52231501.

It can be written as a sum of positive squares in 12 ways, for example, as 3810304 + 6702921 = 1952^2 + 2589^2 .

It is not a de Polignac number, because 10513225 - 2⁹ = 10512713 is a prime.

It is a super-2 number, since 2×10513225² = 221055799801250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11899 + ... + 12751.

It is an arithmetic number, because the mean of its divisors is an integer number (595665).

Almost surely, 2^10513225 is an apocalyptic number.

It is an amenable number.

10513225 is a deficient number, since it is larger than the sum of its proper divisors (3782735).

10513225 is a wasteful number, since it uses less digits than its factorization.

10513225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 10513225 is about 3242.4103688460. The cubic root of 10513225 is about 219.0678535671.

Adding to 10513225 its reverse (52231501), we get a palindrome (62744726).

The spelling of 10513225 in words is "ten million, five hundred thirteen thousand, two hundred twenty-five".