51647601 has 16 divisors (see below), whose sum is σ = 71470080. Its totient is φ = 33151440.

The previous prime is 51647569. The next prime is 51647611. The reversal of 51647601 is 10674615.

It is not a de Polignac number, because 51647601 - 2⁵ = 51647569 is a prime.

51647601 is a modest number, since divided by 47601 gives 516 as remainder.

It is not an unprimeable number, because it can be changed into a prime (51647611) 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, 6340 + ... + 11978.

It is an arithmetic number, because the mean of its divisors is an integer number (4466880).

Almost surely, 2^51647601 is an apocalyptic number.

It is an amenable number.

51647601 is a deficient number, since it is larger than the sum of its proper divisors (19822479).

51647601 is a wasteful number, since it uses less digits than its factorization.

51647601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 51647601 is about 7186.6265382306. The cubic root of 51647601 is about 372.4060414944.

The spelling of 51647601 in words is "fifty-one million, six hundred forty-seven thousand, six hundred one".