51394658 has 32 divisors (see below), whose sum is σ = 93709440. Its totient is φ = 20649600.

The previous prime is 51394657. The next prime is 51394661. The reversal of 51394658 is 85649315.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51394657) 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, 25910 + ... + 27822.

It is an arithmetic number, because the mean of its divisors is an integer number (2928420).

Almost surely, 2^51394658 is an apocalyptic number.

51394658 is a deficient number, since it is larger than the sum of its proper divisors (42314782).

51394658 is a wasteful number, since it uses less digits than its factorization.

51394658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042.

The product of its digits is 129600, while the sum is 41.

The square root of 51394658 is about 7169.0067652360. The cubic root of 51394658 is about 371.7970961543.

The spelling of 51394658 in words is "fifty-one million, three hundred ninety-four thousand, six hundred fifty-eight".