51974123 has 4 divisors (see below), whose sum is σ = 52007808. Its totient is φ = 51940440.

The previous prime is 51974113. The next prime is 51974129. The reversal of 51974123 is 32147915.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51974123 - 2¹² = 51970027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51974123.

It is not an unprimeable number, because it can be changed into a prime (51974129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14411 + ... + 17652.

It is an arithmetic number, because the mean of its divisors is an integer number (13001952).

Almost surely, 2^51974123 is an apocalyptic number.

51974123 is a deficient number, since it is larger than the sum of its proper divisors (33685).

51974123 is a wasteful number, since it uses less digits than its factorization.

51974123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33684.

The product of its digits is 7560, while the sum is 32.

The square root of 51974123 is about 7209.3080805303. The cubic root of 51974123 is about 373.1891911835.

The spelling of 51974123 in words is "fifty-one million, nine hundred seventy-four thousand, one hundred twenty-three".