51670057 has 8 divisors (see below), whose sum is σ = 52925096. Its totient is φ = 50429952.

The previous prime is 51670043. The next prime is 51670097. The reversal of 51670057 is 75007615.

It can be written as a sum of positive squares in 4 ways, for example, as 5103081 + 46566976 = 2259^2 + 6824^2 .

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 51670057 - 2¹⁹ = 51145769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51670007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3433 + ... + 10729.

It is an arithmetic number, because the mean of its divisors is an integer number (6615637).

Almost surely, 2^51670057 is an apocalyptic number.

It is an amenable number.

51670057 is a deficient number, since it is larger than the sum of its proper divisors (1255039).

51670057 is an equidigital number, since it uses as much as digits as its factorization.

51670057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7467.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 51670057 is about 7188.1887148293. The cubic root of 51670057 is about 372.4600068169.

The spelling of 51670057 in words is "fifty-one million, six hundred seventy thousand, fifty-seven".