51700273 has 4 divisors (see below), whose sum is σ = 54421360. Its totient is φ = 48979188.

The previous prime is 51700267. The next prime is 51700291. The reversal of 51700273 is 37200715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51700273 - 2¹⁷ = 51569201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51700223) 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 3 ways as a sum of consecutive naturals, for example, 1360515 + ... + 1360552.

It is an arithmetic number, because the mean of its divisors is an integer number (13605340).

Almost surely, 2^51700273 is an apocalyptic number.

It is an amenable number.

51700273 is a deficient number, since it is larger than the sum of its proper divisors (2721087).

51700273 is a wasteful number, since it uses less digits than its factorization.

51700273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721086.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 51700273 is about 7190.2901888589. The cubic root of 51700273 is about 372.5325959795.

Adding to 51700273 its reverse (37200715), we get a palindrome (88900988).

The spelling of 51700273 in words is "fifty-one million, seven hundred thousand, two hundred seventy-three".