51696357 has 8 divisors (see below), whose sum is σ = 71305440. Its totient is φ = 33275760.

The previous prime is 51696343. The next prime is 51696361. The reversal of 51696357 is 75369615.

It is a happy number.

51696357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51696357 - 2⁸ = 51696101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51696317) 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 7 ways as a sum of consecutive naturals, for example, 297019 + ... + 297192.

It is an arithmetic number, because the mean of its divisors is an integer number (8913180).

Almost surely, 2^51696357 is an apocalyptic number.

It is an amenable number.

51696357 is a deficient number, since it is larger than the sum of its proper divisors (19609083).

51696357 is a wasteful number, since it uses less digits than its factorization.

51696357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594243.

The product of its digits is 170100, while the sum is 42.

The square root of 51696357 is about 7190.0178720223. The cubic root of 51696357 is about 372.5231900041.

The spelling of 51696357 in words is "fifty-one million, six hundred ninety-six thousand, three hundred fifty-seven".