525854651212 has 24 divisors (see below), whose sum is σ = 1003951504080. Its totient is φ = 239013610560.

The previous prime is 525854651167. The next prime is 525854651221. The reversal of 525854651212 is 212156458525.

It is a happy number.

It is a super-2 number, since 2×525854651212² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705214 + ... + 1244602.

It is an arithmetic number, because the mean of its divisors is an integer number (41831312670).

Almost surely, 2^525854651212 is an apocalyptic number.

It is an amenable number.

525854651212 is a deficient number, since it is larger than the sum of its proper divisors (478096852868).

525854651212 is a wasteful number, since it uses less digits than its factorization.

525854651212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561561 (or 561559 counting only the distinct ones).

The product of its digits is 960000, while the sum is 46.

The spelling of 525854651212 in words is "five hundred twenty-five billion, eight hundred fifty-four million, six hundred fifty-one thousand, two hundred twelve".