51201706 has 8 divisors (see below), whose sum is σ = 78436800. Its totient is φ = 25056108.

The previous prime is 51201649. The next prime is 51201727. The reversal of 51201706 is 60710215.

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

It is a super-2 number, since 2×51201706² = 5243229394620872, which contains 22 as substring.

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, 272256 + ... + 272443.

It is an arithmetic number, because the mean of its divisors is an integer number (9804600).

Almost surely, 2^51201706 is an apocalyptic number.

51201706 is a deficient number, since it is larger than the sum of its proper divisors (27235094).

51201706 is a wasteful number, since it uses less digits than its factorization.

51201706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544748.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 51201706 is about 7155.5367373804. The cubic root of 51201706 is about 371.3312308883.

The spelling of 51201706 in words is "fifty-one million, two hundred one thousand, seven hundred six".