51384901 has 8 divisors (see below), whose sum is σ = 52268544. Its totient is φ = 50505840.

The previous prime is 51384869. The next prime is 51384917. The reversal of 51384901 is 10948315.

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 51384901 - 2⁵ = 51384869 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 (51384941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27276 + ... + 29098.

It is an arithmetic number, because the mean of its divisors is an integer number (6533568).

Almost surely, 2^51384901 is an apocalyptic number.

It is an amenable number.

51384901 is a deficient number, since it is larger than the sum of its proper divisors (883643).

51384901 is a wasteful number, since it uses less digits than its factorization.

51384901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 51384901 is about 7168.3262342056. The cubic root of 51384901 is about 371.7735667708.

The spelling of 51384901 in words is "fifty-one million, three hundred eighty-four thousand, nine hundred one".