51131120150025 has 72 divisors (see below), whose sum is σ = 93544734899616. Its totient is φ = 26691053126400.

The previous prime is 51131120150023. The next prime is 51131120150083. The reversal of 51131120150025 is 52005102113115.

It is a happy number.

51131120150025 is a `hidden beast` number, since 5 + 1 + 1 + 31 + 120 + 1 + 500 + 2 + 5 = 666.

It is not a de Polignac number, because 51131120150025 - 2¹ = 51131120150023 is a prime.

It is a super-2 number, since 2×51131120150025² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51131120150023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9730027 + ... + 14033376.

Almost surely, 2^{51131120150025} is an apocalyptic number.

It is an amenable number.

51131120150025 is a deficient number, since it is larger than the sum of its proper divisors (42413614749591).

51131120150025 is a wasteful number, since it uses less digits than its factorization.

51131120150025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23763623 (or 23763615 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

The spelling of 51131120150025 in words is "fifty-one trillion, one hundred thirty-one billion, one hundred twenty million, one hundred fifty thousand, twenty-five".