525705400212 has 48 divisors (see below), whose sum is σ = 1257030483072. Its totient is φ = 170897656320.

The previous prime is 525705400193. The next prime is 525705400217. The reversal of 525705400212 is 212004507525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525705400217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137873 + ... + 1531719.

It is an arithmetic number, because the mean of its divisors is an integer number (26188135064).

Almost surely, 2^525705400212 is an apocalyptic number.

It is an amenable number.

525705400212 is an abundant number, since it is smaller than the sum of its proper divisors (731325082860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525705400212 is a wasteful number, since it uses less digits than its factorization.

525705400212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396608 (or 396606 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 33.

Adding to 525705400212 its reverse (212004507525), we get a palindrome (737709907737).

The spelling of 525705400212 in words is "five hundred twenty-five billion, seven hundred five million, four hundred thousand, two hundred twelve".