525255305081 has 8 divisors (see below), whose sum is σ = 565666411464. Its totient is φ = 484845177600.

The previous prime is 525255305063. The next prime is 525255305087. The reversal of 525255305081 is 180503552525.

It can be written as a sum of positive squares in 4 ways, for example, as 738969856 + 524516335225 = 27184^2 + 724235^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 525255305081 - 2³⁸ = 250377398137 is a prime.

It is a super-2 number, since 2×525255305081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525255305087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174631 + ... + 1558931.

It is an arithmetic number, because the mean of its divisors is an integer number (70708301433).

Almost surely, 2^525255305081 is an apocalyptic number.

It is an amenable number.

525255305081 is a deficient number, since it is larger than the sum of its proper divisors (40411106383).

525255305081 is a wasteful number, since it uses less digits than its factorization.

525255305081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489451.

The product of its (nonzero) digits is 300000, while the sum is 41.

The spelling of 525255305081 in words is "five hundred twenty-five billion, two hundred fifty-five million, three hundred five thousand, eighty-one".