51994029 has 8 divisors (see below), whose sum is σ = 69361632. Its totient is φ = 34644560.

The previous prime is 51994003. The next prime is 51994043. The reversal of 51994029 is 92049915.

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 51994029 - 2¹² = 51989933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51994069) 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, 5062 + ... + 11384.

It is an arithmetic number, because the mean of its divisors is an integer number (8670204).

Almost surely, 2^51994029 is an apocalyptic number.

It is an amenable number.

51994029 is a deficient number, since it is larger than the sum of its proper divisors (17367603).

51994029 is a wasteful number, since it uses less digits than its factorization.

51994029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9067.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 51994029 is about 7210.6885246833. The cubic root of 51994029 is about 373.2368287092.

The spelling of 51994029 in words is "fifty-one million, nine hundred ninety-four thousand, twenty-nine".