51710521357 has 8 divisors (see below), whose sum is σ = 56823242112. Its totient is φ = 46666428000.

The previous prime is 51710521333. The next prime is 51710521363. The reversal of 51710521357 is 75312501715.

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 51710521357 - 2¹¹ = 51710519309 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 (51710521157) 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, 17155269 + ... + 17158282.

It is an arithmetic number, because the mean of its divisors is an integer number (7102905264).

Almost surely, 2^51710521357 is an apocalyptic number.

It is an amenable number.

51710521357 is a deficient number, since it is larger than the sum of its proper divisors (5112720755).

51710521357 is a wasteful number, since it uses less digits than its factorization.

51710521357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34313699.

The product of its (nonzero) digits is 36750, while the sum is 37.

The spelling of 51710521357 in words is "fifty-one billion, seven hundred ten million, five hundred twenty-one thousand, three hundred fifty-seven".