51551521095 has 16 divisors (see below), whose sum is σ = 82485292032. Its totient is φ = 27493191840.

The previous prime is 51551521079. The next prime is 51551521097. The reversal of 51551521095 is 59012515515.

It is not a de Polignac number, because 51551521095 - 2⁴ = 51551521079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51551521097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701550 + ... + 771540.

It is an arithmetic number, because the mean of its divisors is an integer number (5155330752).

Almost surely, 2^51551521095 is an apocalyptic number.

51551521095 is a deficient number, since it is larger than the sum of its proper divisors (30933770937).

51551521095 is a wasteful number, since it uses less digits than its factorization.

51551521095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119102.

The product of its (nonzero) digits is 56250, while the sum is 39.

The spelling of 51551521095 in words is "fifty-one billion, five hundred fifty-one million, five hundred twenty-one thousand, ninety-five".