51604206 has 8 divisors (see below), whose sum is σ = 103208424. Its totient is φ = 17201400.

The previous prime is 51604193. The next prime is 51604219. The reversal of 51604206 is 60240615.

It is an interprime number because it is at equal distance from previous prime (51604193) and next prime (51604219).

It is a sphenic number, since it is the product of 3 distinct primes.

51604206 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4300345 + ... + 4300356.

It is an arithmetic number, because the mean of its divisors is an integer number (12901053).

Almost surely, 2^51604206 is an apocalyptic number.

51604206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51604206 is a wasteful number, since it uses less digits than its factorization.

51604206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8600706.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 51604206 is about 7183.6067542704. The cubic root of 51604206 is about 372.3017121027.

The spelling of 51604206 in words is "fifty-one million, six hundred four thousand, two hundred six".