51429471 has 8 divisors (see below), whose sum is σ = 72606384. Its totient is φ = 32269440.

The previous prime is 51429439. The next prime is 51429491. The reversal of 51429471 is 17492415.

It is a happy number.

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

It is not a de Polignac number, because 51429471 - 2⁵ = 51429439 is a prime.

It is a super-3 number, since 3×51429471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51429431) 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, 504160 + ... + 504261.

It is an arithmetic number, because the mean of its divisors is an integer number (9075798).

Almost surely, 2^51429471 is an apocalyptic number.

51429471 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51429471 is a deficient number, since it is larger than the sum of its proper divisors (21176913).

51429471 is a wasteful number, since it uses less digits than its factorization.

51429471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008441.

The product of its digits is 10080, while the sum is 33.

The square root of 51429471 is about 7171.4343753534. The cubic root of 51429471 is about 371.8810247923.

The spelling of 51429471 in words is "fifty-one million, four hundred twenty-nine thousand, four hundred seventy-one".