51954789 has 8 divisors (see below), whose sum is σ = 69361920. Its totient is φ = 34592096.

The previous prime is 51954781. The next prime is 51954817. The reversal of 51954789 is 98745915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51954789 - 2³ = 51954781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51954781) 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 7 ways as a sum of consecutive naturals, for example, 8277 + ... + 13130.

It is an arithmetic number, because the mean of its divisors is an integer number (8670240).

Almost surely, 2^51954789 is an apocalyptic number.

It is an amenable number.

51954789 is a deficient number, since it is larger than the sum of its proper divisors (17407131).

51954789 is a wasteful number, since it uses less digits than its factorization.

51954789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22219.

The product of its digits is 453600, while the sum is 48.

The square root of 51954789 is about 7207.9670504241. The cubic root of 51954789 is about 373.1429108793.

The spelling of 51954789 in words is "fifty-one million, nine hundred fifty-four thousand, seven hundred eighty-nine".