52021551362225 has 12 divisors (see below), whose sum is σ = 64523192210844. Its totient is φ = 41606616237120.

The previous prime is 52021551362189. The next prime is 52021551362257. The reversal of 52021551362225 is 52226315512025.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 386059667569 + 51635491694656 = 621337^2 + 7185784^2 .

It is not a de Polignac number, because 52021551362225 - 2¹⁰ = 52021551361201 is a prime.

It is a super-2 number, since 2×52021551362225² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265521434 + ... + 265717283.

It is an arithmetic number, because the mean of its divisors is an integer number (5376932684237).

Almost surely, 2^{52021551362225} is an apocalyptic number.

It is an amenable number.

52021551362225 is a deficient number, since it is larger than the sum of its proper divisors (12501640848619).

52021551362225 is a wasteful number, since it uses less digits than its factorization.

52021551362225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531242644 (or 531242639 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 52021551362225 in words is "fifty-two trillion, twenty-one billion, five hundred fifty-one million, three hundred sixty-two thousand, two hundred twenty-five".