51770085 has 16 divisors (see below), whose sum is σ = 84853440. Its totient is φ = 26936960.

The previous prime is 51770071. The next prime is 51770087. The reversal of 51770085 is 58007715.

It is not a de Polignac number, because 51770085 - 2⁵ = 51770053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51770087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41475 + ... + 42704.

It is an arithmetic number, because the mean of its divisors is an integer number (5303340).

Almost surely, 2^51770085 is an apocalyptic number.

It is an amenable number.

51770085 is a deficient number, since it is larger than the sum of its proper divisors (33083355).

51770085 is a wasteful number, since it uses less digits than its factorization.

51770085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84228.

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 51770085 is about 7195.1431535446. The cubic root of 51770085 is about 372.7002001771.

The spelling of 51770085 in words is "fifty-one million, seven hundred seventy thousand, eighty-five".