51535321455 has 16 divisors (see below), whose sum is σ = 82504136160. Its totient is φ = 27469630848.

The previous prime is 51535321433. The next prime is 51535321457. The reversal of 51535321455 is 55412353515.

It is not a de Polignac number, because 51535321455 - 2⁵ = 51535321423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51535321457) 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, 965260 + ... + 1017249.

It is an arithmetic number, because the mean of its divisors is an integer number (5156508510).

Almost surely, 2^51535321455 is an apocalyptic number.

51535321455 is a deficient number, since it is larger than the sum of its proper divisors (30968814705).

51535321455 is a wasteful number, since it uses less digits than its factorization.

51535321455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984250.

The product of its digits is 225000, while the sum is 39.

The spelling of 51535321455 in words is "fifty-one billion, five hundred thirty-five million, three hundred twenty-one thousand, four hundred fifty-five".