10520455252 has 12 divisors (see below), whose sum is σ = 18468877140. Its totient is φ = 5243633216.

The previous prime is 10520455241. The next prime is 10520455261. The reversal of 10520455252 is 25255402501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1399059216 + 9121396036 = 37404^2 + 95506^2 .

It is a super-2 number, since 2×10520455252² (a number of 21 digits) 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 3 ways as a sum of consecutive naturals, for example, 4147177 + ... + 4149712.

It is an arithmetic number, because the mean of its divisors is an integer number (1539073095).

Almost surely, 2^10520455252 is an apocalyptic number.

It is an amenable number.

10520455252 is a deficient number, since it is larger than the sum of its proper divisors (7948421888).

10520455252 is a wasteful number, since it uses less digits than its factorization.

10520455252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8297210 (or 8297208 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

Adding to 10520455252 its reverse (25255402501), we get a palindrome (35775857753).

The spelling of 10520455252 in words is "ten billion, five hundred twenty million, four hundred fifty-five thousand, two hundred fifty-two".