51858365 has 16 divisors (see below), whose sum is σ = 67872000. Its totient is φ = 37806912.

The previous prime is 51858361. The next prime is 51858379. The reversal of 51858365 is 56385815.

It is not a de Polignac number, because 51858365 - 2² = 51858361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51858361) 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, 86 + ... + 10184.

It is an arithmetic number, because the mean of its divisors is an integer number (4242000).

Almost surely, 2^51858365 is an apocalyptic number.

It is an amenable number.

51858365 is a deficient number, since it is larger than the sum of its proper divisors (16013635).

51858365 is a wasteful number, since it uses less digits than its factorization.

51858365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10196.

The product of its digits is 144000, while the sum is 41.

The square root of 51858365 is about 7201.2752342901. The cubic root of 51858365 is about 372.9119266309.

The spelling of 51858365 in words is "fifty-one million, eight hundred fifty-eight thousand, three hundred sixty-five".