51458201 has 4 divisors (see below), whose sum is σ = 54485172. Its totient is φ = 48431232.

The previous prime is 51458191. The next prime is 51458219. The reversal of 51458201 is 10285415.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15217801 + 36240400 = 3901^2 + 6020^2 .

It is a de Polignac number, because none of the positive numbers 2^k-51458201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51458261) 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, 1513460 + ... + 1513493.

It is an arithmetic number, because the mean of its divisors is an integer number (13621293).

Almost surely, 2^51458201 is an apocalyptic number.

It is an amenable number.

51458201 is a deficient number, since it is larger than the sum of its proper divisors (3026971).

51458201 is a wasteful number, since it uses less digits than its factorization.

51458201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026970.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 51458201 is about 7173.4371817142. The cubic root of 51458201 is about 371.9502597580.

The spelling of 51458201 in words is "fifty-one million, four hundred fifty-eight thousand, two hundred one".