51146401 has 8 divisors (see below), whose sum is σ = 53426880. Its totient is φ = 48900432.

The previous prime is 51146369. The next prime is 51146413. The reversal of 51146401 is 10464115.

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

It is a cyclic number.

It is not a de Polignac number, because 51146401 - 2⁵ = 51146369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51146471) 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, 5575 + ... + 11548.

It is an arithmetic number, because the mean of its divisors is an integer number (6678360).

Almost surely, 2^51146401 is an apocalyptic number.

It is an amenable number.

51146401 is a deficient number, since it is larger than the sum of its proper divisors (2280479).

51146401 is a wasteful number, since it uses less digits than its factorization.

51146401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17255.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 51146401 is about 7151.6712032923. The cubic root of 51146401 is about 371.1974861764.

The spelling of 51146401 in words is "fifty-one million, one hundred forty-six thousand, four hundred one".