51973159 has 16 divisors (see below), whose sum is σ = 61424640. Its totient is φ = 43054560.

The previous prime is 51973157. The next prime is 51973171. The reversal of 51973159 is 95137915.

It is a cyclic number.

It is not a de Polignac number, because 51973159 - 2¹ = 51973157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51973157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24162 + ... + 26224.

It is an arithmetic number, because the mean of its divisors is an integer number (3839040).

Almost surely, 2^51973159 is an apocalyptic number.

51973159 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

51973159 is a deficient number, since it is larger than the sum of its proper divisors (9451481).

51973159 is a wasteful number, since it uses less digits than its factorization.

51973159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190.

The product of its digits is 42525, while the sum is 40.

The square root of 51973159 is about 7209.2412222092. The cubic root of 51973159 is about 373.1868839033.

The spelling of 51973159 in words is "fifty-one million, nine hundred seventy-three thousand, one hundred fifty-nine".