51897085 has 8 divisors (see below), whose sum is σ = 64984320. Its totient is φ = 39712464.

The previous prime is 51897077. The next prime is 51897119. The reversal of 51897085 is 58079815.

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 51897085 - 2³ = 51897077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225525 + ... + 225754.

It is an arithmetic number, because the mean of its divisors is an integer number (8123040).

Almost surely, 2^51897085 is an apocalyptic number.

It is an amenable number.

51897085 is a deficient number, since it is larger than the sum of its proper divisors (13087235).

51897085 is a wasteful number, since it uses less digits than its factorization.

51897085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451307.

The product of its (nonzero) digits is 100800, while the sum is 43.

The square root of 51897085 is about 7203.9631453805. The cubic root of 51897085 is about 373.0047149890.

The spelling of 51897085 in words is "fifty-one million, eight hundred ninety-seven thousand, eighty-five".