51364279 has 8 divisors (see below), whose sum is σ = 53349120. Its totient is φ = 49416696.

The previous prime is 51364273. The next prime is 51364283. The reversal of 51364279 is 97246315.

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 51364279 - 2¹¹ = 51362231 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 (51364273) 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, 6489 + ... + 12034.

It is an arithmetic number, because the mean of its divisors is an integer number (6668640).

Almost surely, 2^51364279 is an apocalyptic number.

51364279 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

51364279 is a deficient number, since it is larger than the sum of its proper divisors (1984841).

51364279 is a wasteful number, since it uses less digits than its factorization.

51364279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18629.

The product of its digits is 45360, while the sum is 37.

The square root of 51364279 is about 7166.8876787627. The cubic root of 51364279 is about 371.7238262168.

The spelling of 51364279 in words is "fifty-one million, three hundred sixty-four thousand, two hundred seventy-nine".