51706575 has 36 divisors (see below), whose sum is σ = 95130568. Its totient is φ = 26827200.

The previous prime is 51706561. The next prime is 51706579. The reversal of 51706575 is 57560715.

It is not a de Polignac number, because 51706575 - 2¹² = 51702479 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51706579) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5220 + ... + 11430.

Almost surely, 2^51706575 is an apocalyptic number.

51706575 is a deficient number, since it is larger than the sum of its proper divisors (43423993).

51706575 is a wasteful number, since it uses less digits than its factorization.

51706575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6264 (or 6256 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 51706575 is about 7190.7284053843. The cubic root of 51706575 is about 372.5477319733.

The spelling of 51706575 in words is "fifty-one million, seven hundred six thousand, five hundred seventy-five".