51456349 has 8 divisors (see below), whose sum is σ = 58852160. Its totient is φ = 44071776.

The previous prime is 51456347. The next prime is 51456403. The reversal of 51456349 is 94365415.

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

It is not a de Polignac number, because 51456349 - 2¹ = 51456347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51456341) 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, 12817 + ... + 16345.

It is an arithmetic number, because the mean of its divisors is an integer number (7356520).

Almost surely, 2^51456349 is an apocalyptic number.

It is an amenable number.

51456349 is a deficient number, since it is larger than the sum of its proper divisors (7395811).

51456349 is a wasteful number, since it uses less digits than its factorization.

51456349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5619.

The product of its digits is 64800, while the sum is 37.

The square root of 51456349 is about 7173.3080932022. The cubic root of 51456349 is about 371.9457974945.

The spelling of 51456349 in words is "fifty-one million, four hundred fifty-six thousand, three hundred forty-nine".