10525400212 has 12 divisors (see below), whose sum is σ = 18917273620. Its totient is φ = 5120464896.

The previous prime is 10525400191. The next prime is 10525400219. The reversal of 10525400212 is 21200452501.

It can be written as a sum of positive squares in 2 ways, for example, as 8599594756 + 1925805456 = 92734^2 + 43884^2 .

It is a super-2 number, since 2×10525400212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10525400219) 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, 35558637 + ... + 35558932.

Almost surely, 2^10525400212 is an apocalyptic number.

It is an amenable number.

10525400212 is a deficient number, since it is larger than the sum of its proper divisors (8391873408).

10525400212 is a wasteful number, since it uses less digits than its factorization.

10525400212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71117610 (or 71117608 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 10525400212 its reverse (21200452501), we get a palindrome (31725852713).

The spelling of 10525400212 in words is "ten billion, five hundred twenty-five million, four hundred thousand, two hundred twelve".