51551526427 has 16 divisors (see below), whose sum is σ = 58266086400. Its totient is φ = 45318026880.

The previous prime is 51551526407. The next prime is 51551526473. The reversal of 51551526427 is 72462515515.

It is a cyclic number.

It is not a de Polignac number, because 51551526427 - 2¹⁵ = 51551493659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51551526407) 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 15 ways as a sum of consecutive naturals, for example, 1101027 + ... + 1146892.

It is an arithmetic number, because the mean of its divisors is an integer number (3641630400).

Almost surely, 2^51551526427 is an apocalyptic number.

51551526427 is a deficient number, since it is larger than the sum of its proper divisors (6714559973).

51551526427 is a wasteful number, since it uses less digits than its factorization.

51551526427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248026.

The product of its digits is 420000, while the sum is 43.

The spelling of 51551526427 in words is "fifty-one billion, five hundred fifty-one million, five hundred twenty-six thousand, four hundred twenty-seven".