51827947025 has 12 divisors (see below), whose sum is σ = 66003592092. Its totient is φ = 40341752640.

The previous prime is 51827947013. The next prime is 51827947123. The reversal of 51827947025 is 52074972815.

It can be written as a sum of positive squares in 6 ways, for example, as 338891281 + 51489055744 = 18409^2 + 226912^2 .

It is not a de Polignac number, because 51827947025 - 2¹⁶ = 51827881489 is a prime.

It is a super-2 number, since 2×51827947025² (a number of 22 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, 28014182 + ... + 28016031.

It is an arithmetic number, because the mean of its divisors is an integer number (5500299341).

Almost surely, 2^51827947025 is an apocalyptic number.

It is an amenable number.

51827947025 is a deficient number, since it is larger than the sum of its proper divisors (14175645067).

51827947025 is a wasteful number, since it uses less digits than its factorization.

51827947025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56030260 (or 56030255 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 51827947025 in words is "fifty-one billion, eight hundred twenty-seven million, nine hundred forty-seven thousand, twenty-five".