51746386 has 16 divisors (see below), whose sum is σ = 81943200. Its totient is φ = 24439968.

The previous prime is 51746381. The next prime is 51746399. The reversal of 51746386 is 68364715.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51746381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12606 + ... + 16198.

It is an arithmetic number, because the mean of its divisors is an integer number (5121450).

Almost surely, 2^51746386 is an apocalyptic number.

51746386 is a deficient number, since it is larger than the sum of its proper divisors (30196814).

51746386 is a wasteful number, since it uses less digits than its factorization.

51746386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993.

The product of its digits is 120960, while the sum is 40.

The square root of 51746386 is about 7193.4960902193. The cubic root of 51746386 is about 372.6433206737.

The spelling of 51746386 in words is "fifty-one million, seven hundred forty-six thousand, three hundred eighty-six".