51286201 has 4 divisors (see below), whose sum is σ = 51593472. Its totient is φ = 50978932.

The previous prime is 51286199. The next prime is 51286217. The reversal of 51286201 is 10268215.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10268215 = 5 ⋅2053643.

It is a cyclic number.

It is not a de Polignac number, because 51286201 - 2¹ = 51286199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51286241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153385 + ... + 153718.

It is an arithmetic number, because the mean of its divisors is an integer number (12898368).

Almost surely, 2^51286201 is an apocalyptic number.

It is an amenable number.

51286201 is a deficient number, since it is larger than the sum of its proper divisors (307271).

51286201 is a wasteful number, since it uses less digits than its factorization.

51286201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307270.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 51286201 is about 7161.4384728209. The cubic root of 51286201 is about 371.5353802648.

The spelling of 51286201 in words is "fifty-one million, two hundred eighty-six thousand, two hundred one".