525005215412 has 6 divisors (see below), whose sum is σ = 918759126978. Its totient is φ = 262502607704.

The previous prime is 525005215411. The next prime is 525005215447. The reversal of 525005215412 is 214512500525.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 334495662736 + 190509552676 = 578356^2 + 436474^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525005215411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65625651923 + ... + 65625651930.

It is an arithmetic number, because the mean of its divisors is an integer number (153126521163).

Almost surely, 2^525005215412 is an apocalyptic number.

It is an amenable number.

525005215412 is a deficient number, since it is larger than the sum of its proper divisors (393753911566).

525005215412 is a wasteful number, since it uses less digits than its factorization.

525005215412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131251303857 (or 131251303855 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 525005215412 its reverse (214512500525), we get a palindrome (739517715937).

The spelling of 525005215412 in words is "five hundred twenty-five billion, five million, two hundred fifteen thousand, four hundred twelve".