51694357 has 8 divisors (see below), whose sum is σ = 60732000. Its totient is φ = 43379760.

The previous prime is 51694351. The next prime is 51694369. The reversal of 51694357 is 75349615.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51694357 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 (51694351) 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, 180607 + ... + 180892.

It is an arithmetic number, because the mean of its divisors is an integer number (7591500).

Almost surely, 2^51694357 is an apocalyptic number.

It is an amenable number.

51694357 is a deficient number, since it is larger than the sum of its proper divisors (9037643).

51694357 is a wasteful number, since it uses less digits than its factorization.

51694357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361523.

The product of its digits is 113400, while the sum is 40.

The square root of 51694357 is about 7189.8787889644. The cubic root of 51694357 is about 372.5183859519.

The spelling of 51694357 in words is "fifty-one million, six hundred ninety-four thousand, three hundred fifty-seven".