51407279 has 16 divisors (see below), whose sum is σ = 64317696. Its totient is φ = 39916800.

The previous prime is 51407273. The next prime is 51407281. The reversal of 51407279 is 97270415.

51407279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51407279 - 2⁴ = 51407263 is a prime.

It is a super-3 number, since 3×51407279³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51407273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24479 + ... + 26495.

It is an arithmetic number, because the mean of its divisors is an integer number (4019856).

Almost surely, 2^51407279 is an apocalyptic number.

51407279 is a deficient number, since it is larger than the sum of its proper divisors (12910417).

51407279 is a wasteful number, since it uses less digits than its factorization.

51407279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 51407279 is about 7169.8869586626. The cubic root of 51407279 is about 371.8275277678.

The spelling of 51407279 in words is "fifty-one million, four hundred seven thousand, two hundred seventy-nine".