51407029 has 4 divisors (see below), whose sum is σ = 51423840. Its totient is φ = 51390220.

The previous prime is 51407017. The next prime is 51407033. The reversal of 51407029 is 92070415.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51407029 - 2¹⁷ = 51275957 is a prime.

It is a super-4 number, since 4×51407029⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51406988 and 51407006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51407039) 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 3 ways as a sum of consecutive naturals, for example, 2377 + ... + 10414.

It is an arithmetic number, because the mean of its divisors is an integer number (12855960).

Almost surely, 2^51407029 is an apocalyptic number.

It is an amenable number.

51407029 is a deficient number, since it is larger than the sum of its proper divisors (16811).

51407029 is a wasteful number, since it uses less digits than its factorization.

51407029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16810.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 51407029 is about 7169.8695246148. The cubic root of 51407029 is about 371.8269250189.

The spelling of 51407029 in words is "fifty-one million, four hundred seven thousand, twenty-nine".